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libvirt/src/qemu/qemu_command.c
Michal Privoznik 1e05846373 conf: Catch invalid memory model earlier 
Consider the following XML snippet:

    <memory model=''>
      <target>
        <size unit='KiB'>523264</size>
        <node>0</node>
      </target>
    </memory>

Whats wrong you ask? The @model attribute. This should result in
an error thrown into users faces during virDomainDefine phase.
Except it doesn't. The XML validation catches this error, but if
users chose to ignore that, they will end up with invalid XML.
Well, they won't be able to start the machine - that's when error
is produced currently. But it would be nice if we could catch the
error like this earlier.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-07-29 11:03:24 +02:00

9780 lines
333 KiB
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/*
* qemu_command.c: QEMU command generation
*
* Copyright (C) 2006-2016 Red Hat, Inc.
* Copyright (C) 2006 Daniel P. Berrange
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#include "qemu_command.h"
#include "qemu_hostdev.h"
#include "qemu_capabilities.h"
#include "qemu_interface.h"
#include "qemu_alias.h"
#include "cpu/cpu.h"
#include "dirname.h"
#include "viralloc.h"
#include "virlog.h"
#include "virarch.h"
#include "virerror.h"
#include "virfile.h"
#include "virnetdev.h"
#include "virnetdevbridge.h"
#include "virqemu.h"
#include "virstring.h"
#include "virtime.h"
#include "viruuid.h"
#include "domain_nwfilter.h"
#include "domain_addr.h"
#include "domain_audit.h"
#include "domain_conf.h"
#include "netdev_bandwidth_conf.h"
#include "snapshot_conf.h"
#include "storage_conf.h"
#include "secret_conf.h"
#include "network/bridge_driver.h"
#include "virnetdevtap.h"
#include "device_conf.h"
#include "virstoragefile.h"
#include "virtpm.h"
#include "virscsi.h"
#include "virnuma.h"
#include "virgic.h"
#if defined(__linux__)
# include <linux/capability.h>
#endif
#include "logging/log_manager.h"
#include <sys/stat.h>
#include <fcntl.h>
#define VIR_FROM_THIS VIR_FROM_QEMU
VIR_LOG_INIT("qemu.qemu_command");
VIR_ENUM_DECL(virDomainDiskQEMUBus)
VIR_ENUM_IMPL(virDomainDiskQEMUBus, VIR_DOMAIN_DISK_BUS_LAST,
"ide",
"floppy",
"scsi",
"virtio",
"xen",
"usb",
"uml",
"sata",
"sd")
VIR_ENUM_DECL(qemuDiskCacheV2)
VIR_ENUM_IMPL(qemuDiskCacheV2, VIR_DOMAIN_DISK_CACHE_LAST,
"default",
"none",
"writethrough",
"writeback",
"directsync",
"unsafe");
VIR_ENUM_IMPL(qemuVideo, VIR_DOMAIN_VIDEO_TYPE_LAST,
"std",
"cirrus",
"vmware",
"", /* no arg needed for xen */
"", /* don't support vbox */
"qxl",
"", /* don't support parallels */
"" /* no need for virtio */);
VIR_ENUM_DECL(qemuDeviceVideo)
VIR_ENUM_IMPL(qemuDeviceVideo, VIR_DOMAIN_VIDEO_TYPE_LAST,
"VGA",
"cirrus-vga",
"vmware-svga",
"", /* no device for xen */
"", /* don't support vbox */
"qxl-vga",
"", /* don't support parallels */
"virtio-vga");
VIR_ENUM_DECL(qemuSoundCodec)
VIR_ENUM_IMPL(qemuSoundCodec, VIR_DOMAIN_SOUND_CODEC_TYPE_LAST,
"hda-duplex",
"hda-micro");
VIR_ENUM_DECL(qemuControllerModelUSB)
VIR_ENUM_IMPL(qemuControllerModelUSB, VIR_DOMAIN_CONTROLLER_MODEL_USB_LAST,
"piix3-usb-uhci",
"piix4-usb-uhci",
"usb-ehci",
"ich9-usb-ehci1",
"ich9-usb-uhci1",
"ich9-usb-uhci2",
"ich9-usb-uhci3",
"vt82c686b-usb-uhci",
"pci-ohci",
"nec-usb-xhci",
"none");
VIR_ENUM_DECL(qemuDomainFSDriver)
VIR_ENUM_IMPL(qemuDomainFSDriver, VIR_DOMAIN_FS_DRIVER_TYPE_LAST,
"local",
"local",
"handle",
NULL,
NULL,
NULL);
VIR_ENUM_DECL(qemuNumaPolicy)
VIR_ENUM_IMPL(qemuNumaPolicy, VIR_DOMAIN_NUMATUNE_MEM_LAST,
"bind",
"preferred",
"interleave");
/**
* qemuBuildHasMasterKey:
* @qemuCaps: QEMU binary capabilities
*
* Return true if this binary supports the secret -object, false otherwise.
*/
static bool
qemuBuildHasMasterKey(virQEMUCapsPtr qemuCaps)
{
return virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_SECRET);
}
/**
* qemuBuildMasterKeyCommandLine:
* @cmd: the command to modify
* @qemuCaps qemu capabilities object
* @domainLibDir: location to find the master key
* Formats the command line for a master key if available
*
* Returns 0 on success, -1 w/ error message on failure
*/
static int
qemuBuildMasterKeyCommandLine(virCommandPtr cmd,
virQEMUCapsPtr qemuCaps,
const char *domainLibDir)
{
int ret = -1;
char *alias = NULL;
char *path = NULL;
virBuffer buf = VIR_BUFFER_INITIALIZER;
/* If the -object secret does not exist, then just return. This just
* means the domain won't be able to use a secret master key and is
* not a failure.
*/
if (!qemuBuildHasMasterKey(qemuCaps)) {
VIR_INFO("secret object is not supported by this QEMU binary");
return 0;
}
if (!(alias = qemuDomainGetMasterKeyAlias()))
return -1;
/* Get the path. NB, the mocked test will not have the created
* file so we cannot check for existence, which is no different
* than other command line options which do not check for the
* existence of socket files before using.
*/
if (!(path = qemuDomainGetMasterKeyFilePath(domainLibDir)))
goto cleanup;
virCommandAddArg(cmd, "-object");
virBufferAsprintf(&buf, "secret,id=%s,format=raw,file=", alias);
virQEMUBuildBufferEscapeComma(&buf, path);
virCommandAddArgBuffer(cmd, &buf);
ret = 0;
cleanup:
virBufferFreeAndReset(&buf);
VIR_FREE(alias);
VIR_FREE(path);
return ret;
}
/**
* qemuVirCommandGetFDSet:
* @cmd: the command to modify
* @fd: fd to reassign to the child
*
* Get the parameters for the QEMU -add-fd command line option
* for the given file descriptor. The file descriptor must previously
* have been 'transferred' in a virCommandPassFD() call.
* This function for example returns "set=10,fd=20".
*/
static char *
qemuVirCommandGetFDSet(virCommandPtr cmd, int fd)
{
char *result = NULL;
int idx = virCommandPassFDGetFDIndex(cmd, fd);
if (idx >= 0) {
ignore_value(virAsprintf(&result, "set=%d,fd=%d", idx, fd));
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("file descriptor %d has not been transferred"), fd);
}
return result;
}
/**
* qemuVirCommandGetDevSet:
* @cmd: the command to modify
* @fd: fd to reassign to the child
*
* Get the parameters for the QEMU path= parameter where a file
* descriptor is accessed via a file descriptor set, for example
* /dev/fdset/10. The file descriptor must previously have been
* 'transferred' in a virCommandPassFD() call.
*/
static char *
qemuVirCommandGetDevSet(virCommandPtr cmd, int fd)
{
char *result = NULL;
int idx = virCommandPassFDGetFDIndex(cmd, fd);
if (idx >= 0) {
ignore_value(virAsprintf(&result, "/dev/fdset/%d", idx));
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("file descriptor %d has not been transferred"), fd);
}
return result;
}
char *qemuDeviceDriveHostAlias(virDomainDiskDefPtr disk)
{
char *ret;
if (virAsprintf(&ret, "%s%s",
QEMU_DRIVE_HOST_PREFIX, disk->info.alias) < 0)
return NULL;
return ret;
}
static int
qemuBuildDeviceAddressStr(virBufferPtr buf,
const virDomainDef *domainDef,
virDomainDeviceInfoPtr info,
virQEMUCapsPtr qemuCaps)
{
int ret = -1;
char *devStr = NULL;
const char *contAlias = NULL;
if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
size_t i;
if (!(devStr = virDomainPCIAddressAsString(&info->addr.pci)))
goto cleanup;
for (i = 0; i < domainDef->ncontrollers; i++) {
virDomainControllerDefPtr cont = domainDef->controllers[i];
if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_PCI &&
cont->idx == info->addr.pci.bus) {
contAlias = cont->info.alias;
if (!contAlias) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Device alias was not set for PCI "
"controller with index %u required "
"for device at address %s"),
info->addr.pci.bus, devStr);
goto cleanup;
}
break;
}
}
if (!contAlias) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Could not find PCI "
"controller with index %u required "
"for device at address %s"),
info->addr.pci.bus, devStr);
goto cleanup;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PCI_MULTIFUNCTION)) {
if (info->addr.pci.function != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Only PCI device addresses with function=0 "
"are supported with this QEMU binary"));
goto cleanup;
}
if (info->addr.pci.multi == VIR_TRISTATE_SWITCH_ON) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("'multifunction=on' is not supported with "
"this QEMU binary"));
goto cleanup;
}
}
if (info->addr.pci.bus != 0 &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_PCI_BRIDGE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Multiple PCI buses are not supported "
"with this QEMU binary"));
goto cleanup;
}
virBufferAsprintf(buf, ",bus=%s", contAlias);
if (info->addr.pci.multi == VIR_TRISTATE_SWITCH_ON)
virBufferAddLit(buf, ",multifunction=on");
else if (info->addr.pci.multi == VIR_TRISTATE_SWITCH_OFF)
virBufferAddLit(buf, ",multifunction=off");
virBufferAsprintf(buf, ",addr=0x%x", info->addr.pci.slot);
if (info->addr.pci.function != 0)
virBufferAsprintf(buf, ".0x%x", info->addr.pci.function);
} else if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB) {
if (!(contAlias = virDomainControllerAliasFind(domainDef,
VIR_DOMAIN_CONTROLLER_TYPE_USB,
info->addr.usb.bus)))
goto cleanup;
virBufferAsprintf(buf, ",bus=%s.0", contAlias);
if (virDomainUSBAddressPortIsValid(info->addr.usb.port)) {
virBufferAddLit(buf, ",port=");
virDomainUSBAddressPortFormatBuf(buf, info->addr.usb.port);
}
} else if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_SPAPRVIO) {
if (info->addr.spaprvio.has_reg)
virBufferAsprintf(buf, ",reg=0x%llx", info->addr.spaprvio.reg);
} else if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) {
if (info->addr.ccw.assigned)
virBufferAsprintf(buf, ",devno=%x.%x.%04x",
info->addr.ccw.cssid,
info->addr.ccw.ssid,
info->addr.ccw.devno);
} else if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_ISA) {
virBufferAsprintf(buf, ",iobase=0x%x,irq=0x%x",
info->addr.isa.iobase,
info->addr.isa.irq);
}
ret = 0;
cleanup:
VIR_FREE(devStr);
return ret;
}
static int
qemuBuildRomStr(virBufferPtr buf,
virDomainDeviceInfoPtr info)
{
if (info->rombar || info->romfile) {
if (info->type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("rombar and romfile are supported only for PCI devices"));
return -1;
}
switch (info->rombar) {
case VIR_TRISTATE_SWITCH_OFF:
virBufferAddLit(buf, ",rombar=0");
break;
case VIR_TRISTATE_SWITCH_ON:
virBufferAddLit(buf, ",rombar=1");
break;
default:
break;
}
if (info->romfile)
virBufferAsprintf(buf, ",romfile=%s", info->romfile);
}
return 0;
}
static int
qemuBuildIoEventFdStr(virBufferPtr buf,
virTristateSwitch use,
virQEMUCapsPtr qemuCaps)
{
if (use && virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_IOEVENTFD))
virBufferAsprintf(buf, ",ioeventfd=%s",
virTristateSwitchTypeToString(use));
return 0;
}
#define QEMU_SERIAL_PARAM_ACCEPTED_CHARS \
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_ "
static int
qemuSafeSerialParamValue(const char *value)
{
if (strspn(value, QEMU_SERIAL_PARAM_ACCEPTED_CHARS) != strlen(value)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("driver serial '%s' contains unsafe characters"),
value);
return -1;
}
return 0;
}
static int
qemuNetworkDriveGetPort(int protocol,
const char *port)
{
int ret = 0;
if (port) {
if (virStrToLong_i(port, NULL, 10, &ret) < 0 || ret < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to parse port number '%s'"),
port);
return -1;
}
return ret;
}
switch ((virStorageNetProtocol) protocol) {
case VIR_STORAGE_NET_PROTOCOL_HTTP:
return 80;
case VIR_STORAGE_NET_PROTOCOL_HTTPS:
return 443;
case VIR_STORAGE_NET_PROTOCOL_FTP:
return 21;
case VIR_STORAGE_NET_PROTOCOL_FTPS:
return 990;
case VIR_STORAGE_NET_PROTOCOL_TFTP:
return 69;
case VIR_STORAGE_NET_PROTOCOL_SHEEPDOG:
return 7000;
case VIR_STORAGE_NET_PROTOCOL_NBD:
return 10809;
case VIR_STORAGE_NET_PROTOCOL_SSH:
return 22;
case VIR_STORAGE_NET_PROTOCOL_ISCSI:
case VIR_STORAGE_NET_PROTOCOL_GLUSTER:
/* no default port specified */
return 0;
case VIR_STORAGE_NET_PROTOCOL_RBD:
case VIR_STORAGE_NET_PROTOCOL_LAST:
case VIR_STORAGE_NET_PROTOCOL_NONE:
/* not applicable */
return -1;
}
return -1;
}
/**
* qemuBuildSecretInfoProps:
* @secinfo: pointer to the secret info object
* @props: json properties to return
*
* Build the JSON properties for the secret info type.
*
* Returns 0 on success with the filled in JSON property; otherwise,
* returns -1 on failure error message set.
*/
int
qemuBuildSecretInfoProps(qemuDomainSecretInfoPtr secinfo,
virJSONValuePtr *propsret)
{
int ret = -1;
char *keyid = NULL;
if (!(keyid = qemuDomainGetMasterKeyAlias()))
return -1;
if (virJSONValueObjectCreate(propsret,
"s:data", secinfo->s.aes.ciphertext,
"s:keyid", keyid,
"s:iv", secinfo->s.aes.iv,
"s:format", "base64", NULL) < 0)
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(keyid);
return ret;
}
/**
* qemuBuildObjectSecretCommandLine:
* @cmd: the command to modify
* @secinfo: pointer to the secret info object
*
* If the secinfo is available and associated with an AES secret,
* then format the command line for the secret object. This object
* will be referenced by the device that needs/uses it, so it needs
* to be in place first.
*
* Returns 0 on success, -1 w/ error message on failure
*/
static int
qemuBuildObjectSecretCommandLine(virCommandPtr cmd,
qemuDomainSecretInfoPtr secinfo)
{
int ret = -1;
virJSONValuePtr props = NULL;
char *tmp = NULL;
if (qemuBuildSecretInfoProps(secinfo, &props) < 0)
return -1;
if (!(tmp = virQEMUBuildObjectCommandlineFromJSON("secret",
secinfo->s.aes.alias,
props)))
goto cleanup;
virCommandAddArgList(cmd, "-object", tmp, NULL);
ret = 0;
cleanup:
virJSONValueFree(props);
VIR_FREE(tmp);
return ret;
}
/* qemuBuildDiskSecinfoCommandLine:
* @cmd: Pointer to the command string
* @secinfo: Pointer to a possible secinfo
*
* Add the secret object for the disks that will be using it to perform
* their authentication.
*
* Returns 0 on success, -1 w/ error on some sort of failure.
*/
static int
qemuBuildDiskSecinfoCommandLine(virCommandPtr cmd,
qemuDomainSecretInfoPtr secinfo)
{
/* Not necessary for non AES secrets */
if (!secinfo || secinfo->type != VIR_DOMAIN_SECRET_INFO_TYPE_AES)
return 0;
return qemuBuildObjectSecretCommandLine(cmd, secinfo);
}
/* qemuBuildGeneralSecinfoURI:
* @uri: Pointer to the URI structure to add to
* @secinfo: Pointer to the secret info data (if present)
*
* If we have a secinfo, then build the command line options for
* the secret info for the "general" case (somewhat a misnomer since
* an iscsi disk is the only one with a secinfo).
*
* Returns 0 on success or if no secinfo,
* -1 and error message if fail to add secret information
*/
static int
qemuBuildGeneralSecinfoURI(virURIPtr uri,
qemuDomainSecretInfoPtr secinfo)
{
if (!secinfo)
return 0;
switch ((qemuDomainSecretInfoType) secinfo->type) {
case VIR_DOMAIN_SECRET_INFO_TYPE_PLAIN:
if (secinfo->s.plain.secret) {
if (!virStringBufferIsPrintable(secinfo->s.plain.secret,
secinfo->s.plain.secretlen)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("found non printable characters in secret"));
return -1;
}
if (virAsprintf(&uri->user, "%s:%s",
secinfo->s.plain.username,
secinfo->s.plain.secret) < 0)
return -1;
} else {
if (VIR_STRDUP(uri->user, secinfo->s.plain.username) < 0)
return -1;
}
break;
case VIR_DOMAIN_SECRET_INFO_TYPE_AES:
case VIR_DOMAIN_SECRET_INFO_TYPE_LAST:
return -1;
}
return 0;
}
/* qemuBuildRBDSecinfoURI:
* @uri: Pointer to the URI structure to add to
* @secinfo: Pointer to the secret info data (if present)
*
* If we have a secinfo, then build the command line options for
* the secret info for the RBD network storage. Assumption for this
* is both username and secret exist for plaintext
*
* Returns 0 on success or if no secinfo,
* -1 and error message if fail to add secret information
*/
static int
qemuBuildRBDSecinfoURI(virBufferPtr buf,
qemuDomainSecretInfoPtr secinfo)
{
char *base64secret = NULL;
if (!secinfo) {
virBufferAddLit(buf, ":auth_supported=none");
return 0;
}
switch ((qemuDomainSecretInfoType) secinfo->type) {
case VIR_DOMAIN_SECRET_INFO_TYPE_PLAIN:
if (!(base64secret = virStringEncodeBase64(secinfo->s.plain.secret,
secinfo->s.plain.secretlen)))
return -1;
virBufferEscape(buf, '\\', ":", ":id=%s", secinfo->s.plain.username);
virBufferEscape(buf, '\\', ":",
":key=%s:auth_supported=cephx\\;none",
base64secret);
VIR_DISPOSE_STRING(base64secret);
break;
case VIR_DOMAIN_SECRET_INFO_TYPE_AES:
virBufferEscape(buf, '\\', ":", ":id=%s:auth_supported=cephx\\;none",
secinfo->s.aes.username);
break;
case VIR_DOMAIN_SECRET_INFO_TYPE_LAST:
return -1;
}
return 0;
}
#define QEMU_DEFAULT_NBD_PORT "10809"
#define QEMU_DEFAULT_GLUSTER_PORT "24007"
/* builds the hosts array */
static virJSONValuePtr
qemuBuildGlusterDriveJSONHosts(virStorageSourcePtr src)
{
virJSONValuePtr servers = NULL;
virJSONValuePtr server = NULL;
virJSONValuePtr ret = NULL;
virStorageNetHostDefPtr host;
const char *transport;
const char *portstr;
size_t i;
if (!(servers = virJSONValueNewArray()))
goto cleanup;
for (i = 0; i < src->nhosts; i++) {
host = src->hosts + i;
transport = virStorageNetHostTransportTypeToString(host->transport);
portstr = host->port;
if (virJSONValueObjectCreate(&server, "s:type", transport, NULL) < 0)
goto cleanup;
if (!portstr)
portstr = QEMU_DEFAULT_GLUSTER_PORT;
switch ((virStorageNetHostTransport) host->transport) {
case VIR_STORAGE_NET_HOST_TRANS_TCP:
if (virJSONValueObjectAdd(server,
"s:host", host->name,
"s:port", portstr,
NULL) < 0)
goto cleanup;
break;
case VIR_STORAGE_NET_HOST_TRANS_UNIX:
if (virJSONValueObjectAdd(server,
"s:socket", host->socket,
NULL) < 0)
goto cleanup;
break;
case VIR_STORAGE_NET_HOST_TRANS_RDMA:
case VIR_STORAGE_NET_HOST_TRANS_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("transport protocol '%s' is not yet supported"),
transport);
goto cleanup;
}
if (virJSONValueArrayAppend(servers, server) < 0)
goto cleanup;
server = NULL;
}
ret = servers;
servers = NULL;
cleanup:
virJSONValueFree(servers);
virJSONValueFree(server);
return ret;
}
static virJSONValuePtr
qemuBuildGlusterDriveJSON(virStorageSourcePtr src)
{
const char *protocol = virStorageNetProtocolTypeToString(src->protocol);
virJSONValuePtr servers = NULL;
virJSONValuePtr ret = NULL;
if (!(servers = qemuBuildGlusterDriveJSONHosts(src)))
return NULL;
/* { driver:"gluster",
* volume:"testvol",
* path:"/a.img",
* server :[{type:"tcp", host:"1.2.3.4", port:24007},
* {type:"unix", socket:"/tmp/glusterd.socket"}, ...]}
*/
if (virJSONValueObjectCreate(&ret,
"s:driver", protocol,
"s:volume", src->volume,
"s:path", src->path,
"a:server", servers, NULL) < 0)
virJSONValueFree(servers);
return ret;
}
static char *
qemuBuildNetworkDriveURI(virStorageSourcePtr src,
qemuDomainSecretInfoPtr secinfo)
{
virURIPtr uri = NULL;
char *ret = NULL;
if (src->nhosts != 1) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("protocol '%s' accepts only one host"),
virStorageNetProtocolTypeToString(src->protocol));
goto cleanup;
}
if (VIR_ALLOC(uri) < 0)
goto cleanup;
if (src->hosts->transport == VIR_STORAGE_NET_HOST_TRANS_TCP) {
if (VIR_STRDUP(uri->scheme,
virStorageNetProtocolTypeToString(src->protocol)) < 0)
goto cleanup;
} else {
if (virAsprintf(&uri->scheme, "%s+%s",
virStorageNetProtocolTypeToString(src->protocol),
virStorageNetHostTransportTypeToString(src->hosts->transport)) < 0)
goto cleanup;
}
if ((uri->port = qemuNetworkDriveGetPort(src->protocol,
src->hosts->port)) < 0)
goto cleanup;
if (src->path) {
if (src->volume) {
if (virAsprintf(&uri->path, "/%s%s",
src->volume, src->path) < 0)
goto cleanup;
} else {
if (virAsprintf(&uri->path, "%s%s",
src->path[0] == '/' ? "" : "/",
src->path) < 0)
goto cleanup;
}
}
if (src->hosts->socket &&
virAsprintf(&uri->query, "socket=%s", src->hosts->socket) < 0)
goto cleanup;
if (qemuBuildGeneralSecinfoURI(uri, secinfo) < 0)
goto cleanup;
if (VIR_STRDUP(uri->server, src->hosts->name) < 0)
goto cleanup;
ret = virURIFormat(uri);
cleanup:
virURIFree(uri);
return ret;
}
static char *
qemuBuildNetworkDriveStr(virStorageSourcePtr src,
qemuDomainSecretInfoPtr secinfo)
{
char *ret = NULL;
virBuffer buf = VIR_BUFFER_INITIALIZER;
size_t i;
switch ((virStorageNetProtocol) src->protocol) {
case VIR_STORAGE_NET_PROTOCOL_NBD:
if (src->nhosts != 1) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("protocol '%s' accepts only one host"),
virStorageNetProtocolTypeToString(src->protocol));
goto cleanup;
}
if (!((src->hosts->name && strchr(src->hosts->name, ':')) ||
(src->hosts->transport == VIR_STORAGE_NET_HOST_TRANS_TCP &&
!src->hosts->name) ||
(src->hosts->transport == VIR_STORAGE_NET_HOST_TRANS_UNIX &&
src->hosts->socket &&
src->hosts->socket[0] != '/'))) {
virBufferAddLit(&buf, "nbd:");
switch (src->hosts->transport) {
case VIR_STORAGE_NET_HOST_TRANS_TCP:
virBufferStrcat(&buf, src->hosts->name, NULL);
virBufferAsprintf(&buf, ":%s",
src->hosts->port ? src->hosts->port :
QEMU_DEFAULT_NBD_PORT);
break;
case VIR_STORAGE_NET_HOST_TRANS_UNIX:
if (!src->hosts->socket) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("socket attribute required for "
"unix transport"));
goto cleanup;
}
virBufferAsprintf(&buf, "unix:%s", src->hosts->socket);
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("nbd does not support transport '%s'"),
virStorageNetHostTransportTypeToString(src->hosts->transport));
goto cleanup;
}
if (src->path)
virBufferAsprintf(&buf, ":exportname=%s", src->path);
if (virBufferCheckError(&buf) < 0)
goto cleanup;
ret = virBufferContentAndReset(&buf);
goto cleanup;
}
/* NBD code uses URI formatting scheme as others in some cases */
ret = qemuBuildNetworkDriveURI(src, secinfo);
break;
case VIR_STORAGE_NET_PROTOCOL_HTTP:
case VIR_STORAGE_NET_PROTOCOL_HTTPS:
case VIR_STORAGE_NET_PROTOCOL_FTP:
case VIR_STORAGE_NET_PROTOCOL_FTPS:
case VIR_STORAGE_NET_PROTOCOL_TFTP:
case VIR_STORAGE_NET_PROTOCOL_ISCSI:
case VIR_STORAGE_NET_PROTOCOL_GLUSTER:
ret = qemuBuildNetworkDriveURI(src, secinfo);
break;
case VIR_STORAGE_NET_PROTOCOL_SHEEPDOG:
if (!src->path) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing disk source for 'sheepdog' protocol"));
goto cleanup;
}
if (src->nhosts == 0) {
if (virAsprintf(&ret, "sheepdog:%s", src->path) < 0)
goto cleanup;
} else if (src->nhosts == 1) {
if (virAsprintf(&ret, "sheepdog:%s:%s:%s",
src->hosts->name,
src->hosts->port ? src->hosts->port : "7000",
src->path) < 0)
goto cleanup;
} else {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("protocol 'sheepdog' accepts up to one host"));
goto cleanup;
}
break;
case VIR_STORAGE_NET_PROTOCOL_RBD:
if (strchr(src->path, ':')) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("':' not allowed in RBD source volume name '%s'"),
src->path);
goto cleanup;
}
virBufferStrcat(&buf, "rbd:", src->path, NULL);
if (src->snapshot)
virBufferEscape(&buf, '\\', ":", "@%s", src->snapshot);
if (qemuBuildRBDSecinfoURI(&buf, secinfo) < 0)
goto cleanup;
if (src->nhosts > 0) {
virBufferAddLit(&buf, ":mon_host=");
for (i = 0; i < src->nhosts; i++) {
if (i)
virBufferAddLit(&buf, "\\;");
/* assume host containing : is ipv6 */
if (strchr(src->hosts[i].name, ':'))
virBufferEscape(&buf, '\\', ":", "[%s]",
src->hosts[i].name);
else
virBufferAsprintf(&buf, "%s", src->hosts[i].name);
if (src->hosts[i].port)
virBufferAsprintf(&buf, "\\:%s", src->hosts[i].port);
}
}
if (src->configFile)
virBufferEscape(&buf, '\\', ":", ":conf=%s", src->configFile);
if (virBufferCheckError(&buf) < 0)
goto cleanup;
ret = virBufferContentAndReset(&buf);
break;
case VIR_STORAGE_NET_PROTOCOL_SSH:
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("'ssh' protocol is not yet supported"));
goto cleanup;
case VIR_STORAGE_NET_PROTOCOL_LAST:
case VIR_STORAGE_NET_PROTOCOL_NONE:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unexpected network protocol '%s'"),
virStorageNetProtocolTypeToString(src->protocol));
goto cleanup;
}
cleanup:
virBufferFreeAndReset(&buf);
return ret;
}
static int
qemuGetDriveSourceProps(virStorageSourcePtr src,
virJSONValuePtr *props)
{
int actualType = virStorageSourceGetActualType(src);
virJSONValuePtr fileprops = NULL;
*props = NULL;
switch ((virStorageType) actualType) {
case VIR_STORAGE_TYPE_BLOCK:
case VIR_STORAGE_TYPE_FILE:
case VIR_STORAGE_TYPE_DIR:
case VIR_STORAGE_TYPE_VOLUME:
case VIR_STORAGE_TYPE_NONE:
case VIR_STORAGE_TYPE_LAST:
break;
case VIR_STORAGE_TYPE_NETWORK:
if (src->protocol == VIR_STORAGE_NET_PROTOCOL_GLUSTER &&
src->nhosts > 1) {
if (!(fileprops = qemuBuildGlusterDriveJSON(src)))
return -1;
}
break;
}
if (fileprops &&
virJSONValueObjectCreate(props, "a:file", fileprops, NULL) < 0) {
virJSONValueFree(fileprops);
return -1;
}
return 0;
}
int
qemuGetDriveSourceString(virStorageSourcePtr src,
qemuDomainSecretInfoPtr secinfo,
char **source)
{
int actualType = virStorageSourceGetActualType(src);
int ret = -1;
*source = NULL;
/* return 1 for empty sources */
if (virStorageSourceIsEmpty(src))
return 1;
switch ((virStorageType) actualType) {
case VIR_STORAGE_TYPE_BLOCK:
case VIR_STORAGE_TYPE_FILE:
case VIR_STORAGE_TYPE_DIR:
if (VIR_STRDUP(*source, src->path) < 0)
goto cleanup;
break;
case VIR_STORAGE_TYPE_NETWORK:
if (!(*source = qemuBuildNetworkDriveStr(src, secinfo)))
goto cleanup;
break;
case VIR_STORAGE_TYPE_VOLUME:
case VIR_STORAGE_TYPE_NONE:
case VIR_STORAGE_TYPE_LAST:
break;
}
ret = 0;
cleanup:
return ret;
}
/* Perform disk definition config validity checks */
int
qemuCheckDiskConfig(virDomainDiskDefPtr disk)
{
if (virDiskNameToIndex(disk->dst) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported disk type '%s'"), disk->dst);
return -1;
}
if (disk->wwn) {
if ((disk->bus != VIR_DOMAIN_DISK_BUS_IDE) &&
(disk->bus != VIR_DOMAIN_DISK_BUS_SCSI)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Only ide and scsi disk support wwn"));
return -1;
}
}
if ((disk->vendor || disk->product) &&
disk->bus != VIR_DOMAIN_DISK_BUS_SCSI) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Only scsi disk supports vendor and product"));
return -1;
}
if (disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) {
/* make sure that both the bus supports type='lun' (SG_IO). */
if (disk->bus != VIR_DOMAIN_DISK_BUS_VIRTIO &&
disk->bus != VIR_DOMAIN_DISK_BUS_SCSI) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("disk device='lun' is not supported for bus='%s'"),
virDomainDiskQEMUBusTypeToString(disk->bus));
return -1;
}
if (qemuDomainDefValidateDiskLunSource(disk->src) < 0)
return -1;
if (disk->wwn) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Setting wwn is not supported for lun device"));
return -1;
}
if (disk->vendor || disk->product) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Setting vendor or product is not supported "
"for lun device"));
return -1;
}
}
return 0;
}
/* Check whether the device address is using either 'ccw' or default s390
* address format and whether that's "legal" for the current qemu and/or
* guest os.machine type. This is the corollary to the code which doesn't
* find the address type set using an emulator that supports either 'ccw'
* or s390 and sets the address type based on the capabilities.
*
* If the address is using 'ccw' or s390 and it's not supported, generate
* an error and return false; otherwise, return true.
*/
bool
qemuCheckCCWS390AddressSupport(const virDomainDef *def,
virDomainDeviceInfo info,
virQEMUCapsPtr qemuCaps,
const char *devicename)
{
if (info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) {
if (!qemuDomainMachineIsS390CCW(def)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("cannot use CCW address type for device "
"'%s' using machine type '%s'"),
devicename, def->os.machine);
return false;
} else if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_CCW)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("CCW address type is not supported by "
"this QEMU"));
return false;
}
} else if (info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_S390) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_S390)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("virtio S390 address type is not supported by "
"this QEMU"));
return false;
}
}
return true;
}
/* Qemu 1.2 and later have a binary flag -enable-fips that must be
* used for VNC auth to obey FIPS settings; but the flag only
* exists on Linux, and with no way to probe for it via QMP. Our
* solution: if FIPS mode is required, then unconditionally use
* the flag, regardless of qemu version, for the following matrix:
*
* old QEMU new QEMU
* FIPS enabled doesn't start VNC auth disabled
* FIPS disabled/missing VNC auth enabled VNC auth enabled
*/
bool
qemuCheckFips(void)
{
bool ret = false;
if (virFileExists("/proc/sys/crypto/fips_enabled")) {
char *buf = NULL;
if (virFileReadAll("/proc/sys/crypto/fips_enabled", 10, &buf) < 0)
return ret;
if (STREQ(buf, "1\n"))
ret = true;
VIR_FREE(buf);
}
return ret;
}
/* Unfortunately it is not possible to use
-device for floppies, or SD
devices. Fortunately, those don't need
static PCI addresses, so we don't really
care that we can't use -device */
static bool
qemuDiskBusNeedsDeviceArg(int bus)
{
return bus != VIR_DOMAIN_DISK_BUS_SD;
}
static int
qemuBuildDriveSourceStr(virDomainDiskDefPtr disk,
virBufferPtr buf)
{
int actualType = virStorageSourceGetActualType(disk->src);
qemuDomainDiskPrivatePtr diskPriv = QEMU_DOMAIN_DISK_PRIVATE(disk);
qemuDomainSecretInfoPtr secinfo = diskPriv->secinfo;
qemuDomainSecretInfoPtr encinfo = diskPriv->encinfo;
virJSONValuePtr srcprops = NULL;
char *source = NULL;
int ret = -1;
if (qemuGetDriveSourceProps(disk->src, &srcprops) < 0)
goto cleanup;
if (!srcprops &&
qemuGetDriveSourceString(disk->src, secinfo, &source) < 0)
goto cleanup;
/* nothing to format if the drive is empty */
if (!(source || srcprops) ||
((disk->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY ||
disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM) &&
disk->tray_status == VIR_DOMAIN_DISK_TRAY_OPEN)) {
ret = 0;
goto cleanup;
}
if (actualType == VIR_STORAGE_TYPE_BLOCK &&
disk->tray_status == VIR_DOMAIN_DISK_TRAY_OPEN) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
disk->src->type == VIR_STORAGE_TYPE_VOLUME ?
_("tray status 'open' is invalid for block type volume") :
_("tray status 'open' is invalid for block type disk"));
goto cleanup;
}
if (source) {
virBufferAddLit(buf, "file=");
/* for now the DIR based storage is handled by the magic FAT format */
if (actualType == VIR_STORAGE_TYPE_DIR) {
if (disk->src->format > 0 &&
disk->src->format != VIR_STORAGE_FILE_FAT) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported disk driver type for '%s'"),
virStorageFileFormatTypeToString(disk->src->format));
goto cleanup;
}
if (!disk->src->readonly) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("cannot create virtual FAT disks in read-write mode"));
goto cleanup;
}
virBufferAddLit(buf, "fat:");
if (disk->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY)
virBufferAddLit(buf, "floppy:");
}
virQEMUBuildBufferEscapeComma(buf, source);
} else {
if (!(source = virQEMUBuildDriveCommandlineFromJSON(srcprops)))
goto cleanup;
virBufferAdd(buf, source, -1);
}
virBufferAddLit(buf, ",");
if (secinfo && secinfo->type == VIR_DOMAIN_SECRET_INFO_TYPE_AES) {
virBufferAsprintf(buf, "password-secret=%s,",
secinfo->s.aes.alias);
}
if (encinfo)
virQEMUBuildLuksOpts(buf, &disk->src->encryption->encinfo,
encinfo->s.aes.alias);
if (disk->src->format > 0 &&
disk->src->type != VIR_STORAGE_TYPE_DIR) {
const char *qemuformat = virStorageFileFormatTypeToString(disk->src->format);
if (disk->src->encryption &&
disk->src->encryption->format == VIR_STORAGE_ENCRYPTION_FORMAT_LUKS)
qemuformat = "luks";
virBufferAsprintf(buf, "format=%s,", qemuformat);
}
ret = 0;
cleanup:
VIR_FREE(source);
virJSONValueFree(srcprops);
return ret;
}
char *
qemuBuildDriveStr(virDomainDiskDefPtr disk,
bool bootable,
virQEMUCapsPtr qemuCaps)
{
virBuffer opt = VIR_BUFFER_INITIALIZER;
const char *bus = virDomainDiskQEMUBusTypeToString(disk->bus);
const char *trans =
virDomainDiskGeometryTransTypeToString(disk->geometry.trans);
int idx = virDiskNameToIndex(disk->dst);
int busid = -1, unitid = -1;
bool emitDeviceSyntax = qemuDiskBusNeedsDeviceArg(disk->bus);
if (idx < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported disk type '%s'"), disk->dst);
goto error;
}
switch (disk->bus) {
case VIR_DOMAIN_DISK_BUS_SCSI:
if (disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DRIVE) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unexpected address type for scsi disk"));
goto error;
}
/* Setting bus= attr for SCSI drives, causes a controller
* to be created. Yes this is slightly odd. It is not possible
* to have > 1 bus on a SCSI controller (yet). */
if (disk->info.addr.drive.bus != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("SCSI controller only supports 1 bus"));
goto error;
}
busid = disk->info.addr.drive.controller;
unitid = disk->info.addr.drive.unit;
break;
case VIR_DOMAIN_DISK_BUS_IDE:
if (disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DRIVE) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unexpected address type for ide disk"));
goto error;
}
/* We can only have 1 IDE controller (currently) */
if (disk->info.addr.drive.controller != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Only 1 %s controller is supported"), bus);
goto error;
}
busid = disk->info.addr.drive.bus;
unitid = disk->info.addr.drive.unit;
break;
case VIR_DOMAIN_DISK_BUS_FDC:
if (disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DRIVE) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unexpected address type for fdc disk"));
goto error;
}
/* We can only have 1 FDC controller (currently) */
if (disk->info.addr.drive.controller != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Only 1 %s controller is supported"), bus);
goto error;
}
/* We can only have 1 FDC bus (currently) */
if (disk->info.addr.drive.bus != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Only 1 %s bus is supported"), bus);
goto error;
}
if (disk->info.addr.drive.target != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("target must be 0 for controller fdc"));
goto error;
}
unitid = disk->info.addr.drive.unit;
break;
case VIR_DOMAIN_DISK_BUS_VIRTIO:
idx = -1;
break;
case VIR_DOMAIN_DISK_BUS_XEN:
case VIR_DOMAIN_DISK_BUS_SD:
/* Xen and SD have no address type currently, so assign
* based on index */
break;
}
if (qemuBuildDriveSourceStr(disk, &opt) < 0)
goto error;
if (emitDeviceSyntax)
virBufferAddLit(&opt, "if=none");
else
virBufferAsprintf(&opt, "if=%s", bus);
if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM) {
if (disk->bus == VIR_DOMAIN_DISK_BUS_SCSI) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SCSI_CD))
virBufferAddLit(&opt, ",media=cdrom");
} else if (disk->bus == VIR_DOMAIN_DISK_BUS_IDE) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_IDE_CD))
virBufferAddLit(&opt, ",media=cdrom");
} else {
virBufferAddLit(&opt, ",media=cdrom");
}
}
if (emitDeviceSyntax) {
virBufferAsprintf(&opt, ",id=%s%s", QEMU_DRIVE_HOST_PREFIX, disk->info.alias);
} else {
if (busid == -1 && unitid == -1) {
if (idx != -1)
virBufferAsprintf(&opt, ",index=%d", idx);
} else {
if (busid != -1)
virBufferAsprintf(&opt, ",bus=%d", busid);
if (unitid != -1)
virBufferAsprintf(&opt, ",unit=%d", unitid);
}
}
if (bootable &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_BOOT) &&
(disk->device == VIR_DOMAIN_DISK_DEVICE_DISK ||
disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) &&
disk->bus != VIR_DOMAIN_DISK_BUS_IDE)
virBufferAddLit(&opt, ",boot=on");
if (disk->src->readonly) {
if (disk->device == VIR_DOMAIN_DISK_DEVICE_DISK) {
if (disk->bus == VIR_DOMAIN_DISK_BUS_IDE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("readonly ide disks are not supported"));
goto error;
}
if (disk->bus == VIR_DOMAIN_DISK_BUS_SATA) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("readonly sata disks are not supported"));
goto error;
}
}
virBufferAddLit(&opt, ",readonly=on");
}
if (disk->transient) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("transient disks not supported yet"));
goto error;
}
/* generate geometry command string */
if (disk->geometry.cylinders > 0 &&
disk->geometry.heads > 0 &&
disk->geometry.sectors > 0) {
virBufferAsprintf(&opt, ",cyls=%u,heads=%u,secs=%u",
disk->geometry.cylinders,
disk->geometry.heads,
disk->geometry.sectors);
if (disk->geometry.trans != VIR_DOMAIN_DISK_TRANS_DEFAULT)
virBufferAsprintf(&opt, ",trans=%s", trans);
}
if (disk->serial &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_SERIAL)) {
if (qemuSafeSerialParamValue(disk->serial) < 0)
goto error;
if (disk->bus == VIR_DOMAIN_DISK_BUS_SCSI &&
disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("scsi-block 'lun' devices do not support the "
"serial property"));
goto error;
}
virBufferAddLit(&opt, ",serial=");
virBufferEscape(&opt, '\\', " ", "%s", disk->serial);
}
if (disk->cachemode) {
const char *mode = NULL;
mode = qemuDiskCacheV2TypeToString(disk->cachemode);
if (disk->cachemode == VIR_DOMAIN_DISK_CACHE_DIRECTSYNC &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_CACHE_DIRECTSYNC)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("disk cache mode 'directsync' is not "
"supported by this QEMU"));
goto error;
} else if (disk->cachemode == VIR_DOMAIN_DISK_CACHE_UNSAFE &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_CACHE_UNSAFE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("disk cache mode 'unsafe' is not "
"supported by this QEMU"));
goto error;
}
if (disk->iomode == VIR_DOMAIN_DISK_IO_NATIVE &&
disk->cachemode != VIR_DOMAIN_DISK_CACHE_DIRECTSYNC &&
disk->cachemode != VIR_DOMAIN_DISK_CACHE_DISABLE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("native I/O needs either no disk cache "
"or directsync cache mode, QEMU will fallback "
"to aio=threads"));
goto error;
}
virBufferAsprintf(&opt, ",cache=%s", mode);
} else if (disk->src->shared && !disk->src->readonly) {
virBufferAddLit(&opt, ",cache=none");
}
if (disk->copy_on_read) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_COPY_ON_READ)) {
virBufferAsprintf(&opt, ",copy-on-read=%s",
virTristateSwitchTypeToString(disk->copy_on_read));
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("copy_on_read is not supported by this QEMU binary"));
goto error;
}
}
if (disk->discard) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_DISCARD)) {
virBufferAsprintf(&opt, ",discard=%s",
virDomainDiskDiscardTypeToString(disk->discard));
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("discard is not supported by this QEMU binary"));
goto error;
}
}
if (disk->detect_zeroes) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_DETECT_ZEROES)) {
int detect_zeroes = disk->detect_zeroes;
/*
* As a convenience syntax, if discards are ignored and
* zero detection is set to 'unmap', then simply behave
* like zero detection is set to 'on'. But don't change
* it in the XML for easier adjustments. This behaviour
* is documented.
*/
if (disk->discard != VIR_DOMAIN_DISK_DISCARD_UNMAP &&
detect_zeroes == VIR_DOMAIN_DISK_DETECT_ZEROES_UNMAP)
detect_zeroes = VIR_DOMAIN_DISK_DETECT_ZEROES_ON;
virBufferAsprintf(&opt, ",detect-zeroes=%s",
virDomainDiskDetectZeroesTypeToString(detect_zeroes));
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("detect_zeroes is not supported by this QEMU binary"));
goto error;
}
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_MONITOR_JSON)) {
const char *wpolicy = NULL, *rpolicy = NULL;
if (disk->error_policy)
wpolicy = virDomainDiskErrorPolicyTypeToString(disk->error_policy);
if (disk->rerror_policy)
rpolicy = virDomainDiskErrorPolicyTypeToString(disk->rerror_policy);
if (disk->error_policy == VIR_DOMAIN_DISK_ERROR_POLICY_ENOSPACE) {
/* in the case of enospace, the option is spelled
* differently in qemu, and it's only valid for werror,
* not for rerror, so leave leave rerror NULL.
*/
wpolicy = "enospc";
} else if (!rpolicy) {
/* for other policies, rpolicy can match wpolicy */
rpolicy = wpolicy;
}
if (wpolicy)
virBufferAsprintf(&opt, ",werror=%s", wpolicy);
if (rpolicy)
virBufferAsprintf(&opt, ",rerror=%s", rpolicy);
}
if (disk->iomode) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_AIO)) {
virBufferAsprintf(&opt, ",aio=%s",
virDomainDiskIoTypeToString(disk->iomode));
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("disk aio mode not supported with this "
"QEMU binary"));
goto error;
}
}
/* block I/O throttling */
if ((disk->blkdeviotune.total_bytes_sec ||
disk->blkdeviotune.read_bytes_sec ||
disk->blkdeviotune.write_bytes_sec ||
disk->blkdeviotune.total_iops_sec ||
disk->blkdeviotune.read_iops_sec ||
disk->blkdeviotune.write_iops_sec) &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_IOTUNE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("block I/O throttling not supported with this "
"QEMU binary"));
goto error;
}
/* block I/O throttling 1.7 */
if ((disk->blkdeviotune.total_bytes_sec_max ||
disk->blkdeviotune.read_bytes_sec_max ||
disk->blkdeviotune.write_bytes_sec_max ||
disk->blkdeviotune.total_iops_sec_max ||
disk->blkdeviotune.read_iops_sec_max ||
disk->blkdeviotune.write_iops_sec_max ||
disk->blkdeviotune.size_iops_sec) &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("there are some block I/O throttling parameters "
"that are not supported with this QEMU binary"));
goto error;
}
if (disk->blkdeviotune.total_bytes_sec > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.read_bytes_sec > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.write_bytes_sec > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.total_iops_sec > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.read_iops_sec > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.write_iops_sec > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.total_bytes_sec_max > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.read_bytes_sec_max > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.write_bytes_sec_max > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.total_iops_sec_max > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.read_iops_sec_max > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.write_iops_sec_max > QEMU_BLOCK_IOTUNE_MAX ||
disk->blkdeviotune.size_iops_sec > QEMU_BLOCK_IOTUNE_MAX) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED,
_("block I/O throttle limit must "
"be no more than %llu using QEMU"), QEMU_BLOCK_IOTUNE_MAX);
goto error;
}
if (disk->blkdeviotune.total_bytes_sec) {
virBufferAsprintf(&opt, ",bps=%llu",
disk->blkdeviotune.total_bytes_sec);
}
if (disk->blkdeviotune.read_bytes_sec) {
virBufferAsprintf(&opt, ",bps_rd=%llu",
disk->blkdeviotune.read_bytes_sec);
}
if (disk->blkdeviotune.write_bytes_sec) {
virBufferAsprintf(&opt, ",bps_wr=%llu",
disk->blkdeviotune.write_bytes_sec);
}
if (disk->blkdeviotune.total_iops_sec) {
virBufferAsprintf(&opt, ",iops=%llu",
disk->blkdeviotune.total_iops_sec);
}
if (disk->blkdeviotune.read_iops_sec) {
virBufferAsprintf(&opt, ",iops_rd=%llu",
disk->blkdeviotune.read_iops_sec);
}
if (disk->blkdeviotune.write_iops_sec) {
virBufferAsprintf(&opt, ",iops_wr=%llu",
disk->blkdeviotune.write_iops_sec);
}
if (disk->blkdeviotune.total_bytes_sec_max) {
virBufferAsprintf(&opt, ",bps_max=%llu",
disk->blkdeviotune.total_bytes_sec_max);
}
if (disk->blkdeviotune.read_bytes_sec_max) {
virBufferAsprintf(&opt, ",bps_rd_max=%llu",
disk->blkdeviotune.read_bytes_sec_max);
}
if (disk->blkdeviotune.write_bytes_sec_max) {
virBufferAsprintf(&opt, ",bps_wr_max=%llu",
disk->blkdeviotune.write_bytes_sec_max);
}
if (disk->blkdeviotune.total_iops_sec_max) {
virBufferAsprintf(&opt, ",iops_max=%llu",
disk->blkdeviotune.total_iops_sec_max);
}
if (disk->blkdeviotune.read_iops_sec_max) {
virBufferAsprintf(&opt, ",iops_rd_max=%llu",
disk->blkdeviotune.read_iops_sec_max);
}
if (disk->blkdeviotune.write_iops_sec_max) {
virBufferAsprintf(&opt, ",iops_wr_max=%llu",
disk->blkdeviotune.write_iops_sec_max);
}
if (disk->blkdeviotune.size_iops_sec) {
virBufferAsprintf(&opt, ",iops_size=%llu",
disk->blkdeviotune.size_iops_sec);
}
if (virBufferCheckError(&opt) < 0)
goto error;
return virBufferContentAndReset(&opt);
error:
virBufferFreeAndReset(&opt);
return NULL;
}
static bool
qemuCheckIOThreads(const virDomainDef *def,
virDomainDiskDefPtr disk)
{
/* Right "type" of disk" */
switch ((virDomainDiskBus)disk->bus) {
case VIR_DOMAIN_DISK_BUS_VIRTIO:
if (disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI &&
disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("IOThreads only available for virtio pci and "
"virtio ccw disk"));
return false;
}
break;
case VIR_DOMAIN_DISK_BUS_IDE:
case VIR_DOMAIN_DISK_BUS_FDC:
case VIR_DOMAIN_DISK_BUS_SCSI:
case VIR_DOMAIN_DISK_BUS_XEN:
case VIR_DOMAIN_DISK_BUS_USB:
case VIR_DOMAIN_DISK_BUS_UML:
case VIR_DOMAIN_DISK_BUS_SATA:
case VIR_DOMAIN_DISK_BUS_SD:
case VIR_DOMAIN_DISK_BUS_LAST:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("IOThreads not available for bus %s target %s"),
virDomainDiskBusTypeToString(disk->bus), disk->dst);
return false;
}
/* Can we find the disk iothread in the iothreadid list? */
if (!virDomainIOThreadIDFind(def, disk->iothread)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Disk iothread '%u' not defined in iothreadid"),
disk->iothread);
return false;
}
return true;
}
char *
qemuBuildDriveDevStr(const virDomainDef *def,
virDomainDiskDefPtr disk,
unsigned int bootindex,
virQEMUCapsPtr qemuCaps)
{
virBuffer opt = VIR_BUFFER_INITIALIZER;
const char *bus = virDomainDiskQEMUBusTypeToString(disk->bus);
const char *contAlias;
int controllerModel;
if (qemuCheckDiskConfig(disk) < 0)
goto error;
if (!qemuCheckCCWS390AddressSupport(def, disk->info, qemuCaps, disk->dst))
goto error;
if (disk->iothread && !qemuCheckIOThreads(def, disk))
goto error;
switch (disk->bus) {
case VIR_DOMAIN_DISK_BUS_IDE:
if (disk->info.addr.drive.target != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("target must be 0 for ide controller"));
goto error;
}
if (disk->wwn &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_IDE_DRIVE_WWN)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Setting wwn for ide disk is not supported "
"by this QEMU"));
goto error;
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_IDE_CD)) {
if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM)
virBufferAddLit(&opt, "ide-cd");
else
virBufferAddLit(&opt, "ide-hd");
} else {
virBufferAddLit(&opt, "ide-drive");
}
if (!(contAlias = virDomainControllerAliasFind(def, VIR_DOMAIN_CONTROLLER_TYPE_IDE,
disk->info.addr.drive.controller)))
goto error;
virBufferAsprintf(&opt, ",bus=%s.%d,unit=%d",
contAlias,
disk->info.addr.drive.bus,
disk->info.addr.drive.unit);
break;
case VIR_DOMAIN_DISK_BUS_SCSI:
if (disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SCSI_BLOCK)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU doesn't support scsi-block for "
"lun passthrough"));
goto error;
}
}
if (disk->wwn &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SCSI_DISK_WWN)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Setting wwn for scsi disk is not supported "
"by this QEMU"));
goto error;
}
/* Properties wwn, vendor and product were introduced in the
* same QEMU release (1.2.0).
*/
if ((disk->vendor || disk->product) &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SCSI_DISK_WWN)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Setting vendor or product for scsi disk is not "
"supported by this QEMU"));
goto error;
}
controllerModel =
virDomainDeviceFindControllerModel(def, &disk->info,
VIR_DOMAIN_CONTROLLER_TYPE_SCSI);
if ((qemuDomainSetSCSIControllerModel(def, qemuCaps,
&controllerModel)) < 0)
goto error;
if (disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) {
virBufferAddLit(&opt, "scsi-block");
} else {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_SCSI_CD)) {
if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM)
virBufferAddLit(&opt, "scsi-cd");
else
virBufferAddLit(&opt, "scsi-hd");
} else {
virBufferAddLit(&opt, "scsi-disk");
}
}
if (!(contAlias = virDomainControllerAliasFind(def, VIR_DOMAIN_CONTROLLER_TYPE_SCSI,
disk->info.addr.drive.controller)))
goto error;
if (controllerModel == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSILOGIC) {
if (disk->info.addr.drive.target != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("target must be 0 for controller "
"model 'lsilogic'"));
goto error;
}
virBufferAsprintf(&opt, ",bus=%s.%d,scsi-id=%d",
contAlias,
disk->info.addr.drive.bus,
disk->info.addr.drive.unit);
} else {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SCSI_DISK_CHANNEL)) {
if (disk->info.addr.drive.target > 7) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU doesn't support target "
"greater than 7"));
goto error;
}
if (disk->info.addr.drive.bus != 0 &&
disk->info.addr.drive.unit != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU only supports both bus and "
"unit equal to 0"));
goto error;
}
}
virBufferAsprintf(&opt, ",bus=%s.0,channel=%d,scsi-id=%d,lun=%d",
contAlias,
disk->info.addr.drive.bus,
disk->info.addr.drive.target,
disk->info.addr.drive.unit);
}
break;
case VIR_DOMAIN_DISK_BUS_SATA:
if (disk->info.addr.drive.bus != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("bus must be 0 for ide controller"));
goto error;
}
if (disk->info.addr.drive.target != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("target must be 0 for ide controller"));
goto error;
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_IDE_CD)) {
if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM)
virBufferAddLit(&opt, "ide-cd");
else
virBufferAddLit(&opt, "ide-hd");
} else {
virBufferAddLit(&opt, "ide-drive");
}
if (!(contAlias = virDomainControllerAliasFind(def, VIR_DOMAIN_CONTROLLER_TYPE_SATA,
disk->info.addr.drive.controller)))
goto error;
virBufferAsprintf(&opt, ",bus=%s.%d",
contAlias,
disk->info.addr.drive.unit);
break;
case VIR_DOMAIN_DISK_BUS_VIRTIO:
if (disk->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) {
virBufferAddLit(&opt, "virtio-blk-ccw");
if (disk->iothread)
virBufferAsprintf(&opt, ",iothread=iothread%u", disk->iothread);
} else if (disk->info.type ==
VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_S390) {
virBufferAddLit(&opt, "virtio-blk-s390");
} else if (disk->info.type ==
VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_MMIO) {
virBufferAddLit(&opt, "virtio-blk-device");
} else {
virBufferAddLit(&opt, "virtio-blk-pci");
if (disk->iothread)
virBufferAsprintf(&opt, ",iothread=iothread%u", disk->iothread);
}
qemuBuildIoEventFdStr(&opt, disk->ioeventfd, qemuCaps);
if (disk->event_idx &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_BLK_EVENT_IDX)) {
virBufferAsprintf(&opt, ",event_idx=%s",
virTristateSwitchTypeToString(disk->event_idx));
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_BLK_SCSI)) {
/* if sg_io is true but the scsi option isn't supported,
* that means it's just always on in this version of qemu.
*/
virBufferAsprintf(&opt, ",scsi=%s",
(disk->device == VIR_DOMAIN_DISK_DEVICE_LUN)
? "on" : "off");
}
if (qemuBuildDeviceAddressStr(&opt, def, &disk->info, qemuCaps) < 0)
goto error;
break;
case VIR_DOMAIN_DISK_BUS_USB:
if (disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE &&
disk->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unexpected address type for usb disk"));
goto error;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_USB_STORAGE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU doesn't support '-device "
"usb-storage'"));
goto error;
}
virBufferAddLit(&opt, "usb-storage");
if (qemuBuildDeviceAddressStr(&opt, def, &disk->info, qemuCaps) < 0)
goto error;
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported disk bus '%s' with device setup"), bus);
goto error;
}
virBufferAsprintf(&opt, ",drive=%s%s", QEMU_DRIVE_HOST_PREFIX, disk->info.alias);
virBufferAsprintf(&opt, ",id=%s", disk->info.alias);
if (bootindex && virQEMUCapsGet(qemuCaps, QEMU_CAPS_BOOTINDEX))
virBufferAsprintf(&opt, ",bootindex=%u", bootindex);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_BLOCKIO)) {
if (disk->blockio.logical_block_size > 0)
virBufferAsprintf(&opt, ",logical_block_size=%u",
disk->blockio.logical_block_size);
if (disk->blockio.physical_block_size > 0)
virBufferAsprintf(&opt, ",physical_block_size=%u",
disk->blockio.physical_block_size);
}
if (disk->wwn) {
if (STRPREFIX(disk->wwn, "0x"))
virBufferAsprintf(&opt, ",wwn=%s", disk->wwn);
else
virBufferAsprintf(&opt, ",wwn=0x%s", disk->wwn);
}
if (disk->vendor)
virBufferAsprintf(&opt, ",vendor=%s", disk->vendor);
if (disk->product)
virBufferAsprintf(&opt, ",product=%s", disk->product);
if (disk->bus == VIR_DOMAIN_DISK_BUS_USB) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_USB_STORAGE_REMOVABLE)) {
if (disk->removable == VIR_TRISTATE_SWITCH_ON)
virBufferAddLit(&opt, ",removable=on");
else
virBufferAddLit(&opt, ",removable=off");
} else {
if (disk->removable != VIR_TRISTATE_SWITCH_ABSENT) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU doesn't support setting the "
"removable flag of USB storage devices"));
goto error;
}
}
}
if (virBufferCheckError(&opt) < 0)
goto error;
return virBufferContentAndReset(&opt);
error:
virBufferFreeAndReset(&opt);
return NULL;
}
static int
qemuBuildDiskDriveCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
unsigned int bootCD = 0;
unsigned int bootFloppy = 0;
unsigned int bootDisk = 0;
virBuffer fdc_opts = VIR_BUFFER_INITIALIZER;
char *fdc_opts_str = NULL;
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_BOOT) ||
virQEMUCapsGet(qemuCaps, QEMU_CAPS_BOOTINDEX)) {
/* bootDevs will get translated into either bootindex=N or boot=on
* depending on what qemu supports */
for (i = 0; i < def->os.nBootDevs; i++) {
switch (def->os.bootDevs[i]) {
case VIR_DOMAIN_BOOT_CDROM:
bootCD = i + 1;
break;
case VIR_DOMAIN_BOOT_FLOPPY:
bootFloppy = i + 1;
break;
case VIR_DOMAIN_BOOT_DISK:
bootDisk = i + 1;
break;
}
}
}
for (i = 0; i < def->ndisks; i++) {
char *optstr;
unsigned int bootindex = 0;
bool driveBoot = false;
virDomainDiskDefPtr disk = def->disks[i];
qemuDomainDiskPrivatePtr diskPriv = QEMU_DOMAIN_DISK_PRIVATE(disk);
qemuDomainSecretInfoPtr secinfo = diskPriv->secinfo;
qemuDomainSecretInfoPtr encinfo = diskPriv->encinfo;
/* PowerPC pseries based VMs do not support floppy device */
if (disk->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY &&
qemuDomainMachineIsPSeries(def)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("PowerPC pseries machines do not support floppy device"));
return -1;
}
if (disk->info.bootIndex) {
bootindex = disk->info.bootIndex;
} else {
switch (disk->device) {
case VIR_DOMAIN_DISK_DEVICE_CDROM:
bootindex = bootCD;
bootCD = 0;
break;
case VIR_DOMAIN_DISK_DEVICE_FLOPPY:
bootindex = bootFloppy;
bootFloppy = 0;
break;
case VIR_DOMAIN_DISK_DEVICE_DISK:
case VIR_DOMAIN_DISK_DEVICE_LUN:
bootindex = bootDisk;
bootDisk = 0;
break;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_BOOTINDEX)) {
driveBoot = !!bootindex;
bootindex = 0;
}
}
if (qemuBuildDiskSecinfoCommandLine(cmd, secinfo) < 0)
return -1;
if (qemuBuildDiskSecinfoCommandLine(cmd, encinfo) < 0)
return -1;
virCommandAddArg(cmd, "-drive");
if (!(optstr = qemuBuildDriveStr(disk, driveBoot, qemuCaps)))
return -1;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
if (qemuDiskBusNeedsDeviceArg(disk->bus)) {
if (disk->bus == VIR_DOMAIN_DISK_BUS_FDC) {
if (virAsprintf(&optstr, "drive%c=drive-%s",
disk->info.addr.drive.unit ? 'B' : 'A',
disk->info.alias) < 0)
return -1;
if (!qemuDomainMachineNeedsFDC(def)) {
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "isa-fdc.%s", optstr);
} else {
virBufferAsprintf(&fdc_opts, "%s,", optstr);
}
VIR_FREE(optstr);
if (bootindex) {
if (virAsprintf(&optstr, "bootindex%c=%u",
disk->info.addr.drive.unit
? 'B' : 'A',
bootindex) < 0)
return -1;
if (!qemuDomainMachineNeedsFDC(def)) {
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "isa-fdc.%s", optstr);
} else {
virBufferAsprintf(&fdc_opts, "%s,", optstr);
}
VIR_FREE(optstr);
}
} else {
virCommandAddArg(cmd, "-device");
if (!(optstr = qemuBuildDriveDevStr(def, disk, bootindex,
qemuCaps)))
return -1;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
}
}
}
/* Newer Q35 machine types require an explicit FDC controller */
virBufferTrim(&fdc_opts, ",", -1);
if ((fdc_opts_str = virBufferContentAndReset(&fdc_opts))) {
virCommandAddArg(cmd, "-device");
virCommandAddArgFormat(cmd, "isa-fdc,%s", fdc_opts_str);
VIR_FREE(fdc_opts_str);
}
return 0;
}
static char *
qemuBuildFSStr(virDomainFSDefPtr fs,
virQEMUCapsPtr qemuCaps)
{
virBuffer opt = VIR_BUFFER_INITIALIZER;
const char *driver = qemuDomainFSDriverTypeToString(fs->fsdriver);
const char *wrpolicy = virDomainFSWrpolicyTypeToString(fs->wrpolicy);
if (fs->type != VIR_DOMAIN_FS_TYPE_MOUNT) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("only supports mount filesystem type"));
goto error;
}
if (!driver) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Filesystem driver type not supported"));
goto error;
}
virBufferAdd(&opt, driver, -1);
if (fs->fsdriver == VIR_DOMAIN_FS_DRIVER_TYPE_PATH ||
fs->fsdriver == VIR_DOMAIN_FS_DRIVER_TYPE_DEFAULT) {
if (fs->accessmode == VIR_DOMAIN_FS_ACCESSMODE_MAPPED) {
virBufferAddLit(&opt, ",security_model=mapped");
} else if (fs->accessmode == VIR_DOMAIN_FS_ACCESSMODE_PASSTHROUGH) {
virBufferAddLit(&opt, ",security_model=passthrough");
} else if (fs->accessmode == VIR_DOMAIN_FS_ACCESSMODE_SQUASH) {
virBufferAddLit(&opt, ",security_model=none");
}
} else {
/* For other fs drivers, default(passthru) should always
* be supported */
if (fs->accessmode != VIR_DOMAIN_FS_ACCESSMODE_PASSTHROUGH) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("only supports passthrough accessmode"));
goto error;
}
}
if (fs->wrpolicy) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_FSDEV_WRITEOUT)) {
virBufferAsprintf(&opt, ",writeout=%s", wrpolicy);
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("filesystem writeout not supported"));
goto error;
}
}
virBufferAsprintf(&opt, ",id=%s%s", QEMU_FSDEV_HOST_PREFIX, fs->info.alias);
virBufferAsprintf(&opt, ",path=%s", fs->src->path);
if (fs->readonly) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_FSDEV_READONLY)) {
virBufferAddLit(&opt, ",readonly");
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("readonly filesystem is not supported by this "
"QEMU binary"));
goto error;
}
}
if (virBufferCheckError(&opt) < 0)
goto error;
return virBufferContentAndReset(&opt);
error:
virBufferFreeAndReset(&opt);
return NULL;
}
static char *
qemuBuildFSDevStr(const virDomainDef *def,
virDomainFSDefPtr fs,
virQEMUCapsPtr qemuCaps)
{
virBuffer opt = VIR_BUFFER_INITIALIZER;
if (fs->type != VIR_DOMAIN_FS_TYPE_MOUNT) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("can only passthrough directories"));
goto error;
}
if (fs->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW)
virBufferAddLit(&opt, "virtio-9p-ccw");
else
virBufferAddLit(&opt, "virtio-9p-pci");
virBufferAsprintf(&opt, ",id=%s", fs->info.alias);
virBufferAsprintf(&opt, ",fsdev=%s%s",
QEMU_FSDEV_HOST_PREFIX, fs->info.alias);
virBufferAsprintf(&opt, ",mount_tag=%s", fs->dst);
if (qemuBuildDeviceAddressStr(&opt, def, &fs->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&opt) < 0)
goto error;
return virBufferContentAndReset(&opt);
error:
virBufferFreeAndReset(&opt);
return NULL;
}
static int
qemuBuildFSDevCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_FSDEV) && def->nfss) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("filesystem passthrough not supported by this QEMU"));
return -1;
}
for (i = 0; i < def->nfss; i++) {
char *optstr;
virDomainFSDefPtr fs = def->fss[i];
virCommandAddArg(cmd, "-fsdev");
if (!(optstr = qemuBuildFSStr(fs, qemuCaps)))
return -1;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
virCommandAddArg(cmd, "-device");
if (!(optstr = qemuBuildFSDevStr(def, fs, qemuCaps)))
return -1;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
}
return 0;
}
static int
qemuControllerModelUSBToCaps(int model)
{
switch (model) {
case VIR_DOMAIN_CONTROLLER_MODEL_USB_PIIX3_UHCI:
return QEMU_CAPS_PIIX3_USB_UHCI;
case VIR_DOMAIN_CONTROLLER_MODEL_USB_PIIX4_UHCI:
return QEMU_CAPS_PIIX4_USB_UHCI;
case VIR_DOMAIN_CONTROLLER_MODEL_USB_EHCI:
return QEMU_CAPS_USB_EHCI;
case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_EHCI1:
case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI1:
case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI2:
case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI3:
return QEMU_CAPS_ICH9_USB_EHCI1;
case VIR_DOMAIN_CONTROLLER_MODEL_USB_VT82C686B_UHCI:
return QEMU_CAPS_VT82C686B_USB_UHCI;
case VIR_DOMAIN_CONTROLLER_MODEL_USB_PCI_OHCI:
return QEMU_CAPS_PCI_OHCI;
case VIR_DOMAIN_CONTROLLER_MODEL_USB_NEC_XHCI:
return QEMU_CAPS_NEC_USB_XHCI;
default:
return -1;
}
}
static int
qemuBuildUSBControllerDevStr(const virDomainDef *domainDef,
virDomainControllerDefPtr def,
virQEMUCapsPtr qemuCaps,
virBuffer *buf)
{
const char *smodel;
int model, flags;
model = def->model;
if (model == -1) {
if ARCH_IS_PPC64(domainDef->os.arch)
model = VIR_DOMAIN_CONTROLLER_MODEL_USB_PCI_OHCI;
else
model = VIR_DOMAIN_CONTROLLER_MODEL_USB_PIIX3_UHCI;
}
smodel = qemuControllerModelUSBTypeToString(model);
flags = qemuControllerModelUSBToCaps(model);
if (flags == -1 || !virQEMUCapsGet(qemuCaps, flags)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("%s not supported in this QEMU binary"), smodel);
return -1;
}
virBufferAsprintf(buf, "%s", smodel);
if (def->opts.usbopts.ports != -1) {
if (model != VIR_DOMAIN_CONTROLLER_MODEL_USB_NEC_XHCI ||
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_NEC_USB_XHCI_PORTS)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("usb controller type %s doesn't support 'ports' "
"with this QEMU binary"), smodel);
return -1;
}
virBufferAsprintf(buf, ",p2=%d,p3=%d",
def->opts.usbopts.ports, def->opts.usbopts.ports);
}
if (def->info.mastertype == VIR_DOMAIN_CONTROLLER_MASTER_USB)
virBufferAsprintf(buf, ",masterbus=%s.0,firstport=%d",
def->info.alias, def->info.master.usb.startport);
else
virBufferAsprintf(buf, ",id=%s", def->info.alias);
return 0;
}
/* qemuCheckSCSIControllerIOThreads:
* @domainDef: Pointer to domain def
* @def: Pointer to controller def
* @qemuCaps: Capabilities
*
* If this controller definition has iothreads set, let's make sure the
* configuration is right before adding to the command line
*
* Returns true if either supported or there are no iothreads for controller;
* otherwise, returns false if configuration is not quite right.
*/
static bool
qemuCheckSCSIControllerIOThreads(const virDomainDef *domainDef,
virDomainControllerDefPtr def,
virQEMUCapsPtr qemuCaps)
{
if (!def->iothread)
return true;
/* By this time QEMU_CAPS_OBJECT_IOTHREAD was already checked.
* We just need to check if the QEMU_CAPS_VIRTIO_SCSI_IOTHREAD
* capability is set.
*/
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_SCSI_IOTHREAD)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("IOThreads for virtio-scsi not supported for "
"this QEMU"));
return false;
}
if (def->model != VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("IOThreads only supported for virtio-scsi "
"controllers model is '%s'"),
virDomainControllerModelSCSITypeToString(def->model));
return false;
}
if (def->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI &&
def->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("IOThreads only available for virtio pci and "
"virtio ccw controllers"));
return false;
}
/* Can we find the controller iothread in the iothreadid list? */
if (!virDomainIOThreadIDFind(domainDef, def->iothread)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("controller iothread '%u' not defined in iothreadid"),
def->iothread);
return false;
}
return true;
}
char *
qemuBuildControllerDevStr(const virDomainDef *domainDef,
virDomainControllerDefPtr def,
virQEMUCapsPtr qemuCaps,
int *nusbcontroller)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
int model = def->model;
const char *modelName = NULL;
if (!qemuCheckCCWS390AddressSupport(domainDef, def->info, qemuCaps,
"controller"))
return NULL;
if (def->type == VIR_DOMAIN_CONTROLLER_TYPE_SCSI) {
if ((qemuDomainSetSCSIControllerModel(domainDef, qemuCaps, &model)) < 0)
return NULL;
}
if (!(def->type == VIR_DOMAIN_CONTROLLER_TYPE_SCSI &&
model == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI)) {
if (def->queues) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("'queues' is only supported by virtio-scsi controller"));
return NULL;
}
if (def->cmd_per_lun) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("'cmd_per_lun' is only supported by virtio-scsi controller"));
return NULL;
}
if (def->max_sectors) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("'max_sectors' is only supported by virtio-scsi controller"));
return NULL;
}
if (def->ioeventfd) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("'ioeventfd' is only supported by virtio-scsi controller"));
return NULL;
}
}
switch (def->type) {
case VIR_DOMAIN_CONTROLLER_TYPE_SCSI:
switch (model) {
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI:
if (def->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) {
virBufferAddLit(&buf, "virtio-scsi-ccw");
if (def->iothread) {
if (!qemuCheckSCSIControllerIOThreads(domainDef,
def, qemuCaps))
goto error;
virBufferAsprintf(&buf, ",iothread=iothread%u",
def->iothread);
}
} else if (def->info.type ==
VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_S390) {
virBufferAddLit(&buf, "virtio-scsi-s390");
} else if (def->info.type ==
VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_MMIO) {
virBufferAddLit(&buf, "virtio-scsi-device");
} else {
virBufferAddLit(&buf, "virtio-scsi-pci");
if (def->iothread) {
if (!qemuCheckSCSIControllerIOThreads(domainDef,
def, qemuCaps))
goto error;
virBufferAsprintf(&buf, ",iothread=iothread%u",
def->iothread);
}
}
break;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSILOGIC:
virBufferAddLit(&buf, "lsi");
break;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_IBMVSCSI:
virBufferAddLit(&buf, "spapr-vscsi");
break;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSISAS1068:
virBufferAddLit(&buf, "mptsas1068");
break;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSISAS1078:
virBufferAddLit(&buf, "megasas");
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Unsupported controller model: %s"),
virDomainControllerModelSCSITypeToString(def->model));
}
virBufferAsprintf(&buf, ",id=%s", def->info.alias);
break;
case VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL:
if (def->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
virBufferAddLit(&buf, "virtio-serial-pci");
} else if (def->info.type ==
VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) {
virBufferAddLit(&buf, "virtio-serial-ccw");
} else if (def->info.type ==
VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_S390) {
virBufferAddLit(&buf, "virtio-serial-s390");
} else if (def->info.type ==
VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_MMIO) {
virBufferAddLit(&buf, "virtio-serial-device");
} else {
virBufferAddLit(&buf, "virtio-serial");
}
virBufferAsprintf(&buf, ",id=%s", def->info.alias);
if (def->opts.vioserial.ports != -1) {
virBufferAsprintf(&buf, ",max_ports=%d",
def->opts.vioserial.ports);
}
if (def->opts.vioserial.vectors != -1) {
virBufferAsprintf(&buf, ",vectors=%d",
def->opts.vioserial.vectors);
}
break;
case VIR_DOMAIN_CONTROLLER_TYPE_CCID:
virBufferAsprintf(&buf, "usb-ccid,id=%s", def->info.alias);
break;
case VIR_DOMAIN_CONTROLLER_TYPE_SATA:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_ICH9_AHCI)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("SATA is not supported with this "
"QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, "ahci,id=%s", def->info.alias);
break;
case VIR_DOMAIN_CONTROLLER_TYPE_USB:
if (qemuBuildUSBControllerDevStr(domainDef, def, qemuCaps, &buf) == -1)
goto error;
if (nusbcontroller)
*nusbcontroller += 1;
break;
case VIR_DOMAIN_CONTROLLER_TYPE_PCI:
if (def->model == VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT ||
def->model == VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("wrong function called for pci-root/pcie-root"));
return NULL;
}
if (def->idx == 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("index for pci controllers of model '%s' must be > 0"),
virDomainControllerModelPCITypeToString(def->model));
goto error;
}
switch (def->model) {
case VIR_DOMAIN_CONTROLLER_MODEL_PCI_BRIDGE:
if (def->opts.pciopts.modelName
== VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_NONE ||
def->opts.pciopts.chassisNr == -1) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("autogenerated pci-bridge options not set"));
goto error;
}
modelName = virDomainControllerPCIModelNameTypeToString(def->opts.pciopts.modelName);
if (!modelName) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown pci-bridge model name value %d"),
def->opts.pciopts.modelName);
goto error;
}
if (def->opts.pciopts.modelName
!= VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_PCI_BRIDGE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("PCI controller model name '%s' "
"is not valid for a pci-bridge"),
modelName);
goto error;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_PCI_BRIDGE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("the pci-bridge controller "
"is not supported in this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, "%s,chassis_nr=%d,id=%s",
modelName, def->opts.pciopts.chassisNr,
def->info.alias);
break;
case VIR_DOMAIN_CONTROLLER_MODEL_PCI_EXPANDER_BUS:
if (def->opts.pciopts.modelName
== VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_NONE ||
def->opts.pciopts.busNr == -1) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("autogenerated pci-expander-bus options not set"));
goto error;
}
modelName = virDomainControllerPCIModelNameTypeToString(def->opts.pciopts.modelName);
if (!modelName) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown pci-expander-bus model name value %d"),
def->opts.pciopts.modelName);
goto error;
}
if (def->opts.pciopts.modelName
!= VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_PXB) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("PCI controller model name '%s' "
"is not valid for a pci-expander-bus"),
modelName);
goto error;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_PXB)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("the pxb controller "
"is not supported in this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, "%s,bus_nr=%d,id=%s",
modelName, def->opts.pciopts.busNr,
def->info.alias);
if (def->opts.pciopts.numaNode != -1)
virBufferAsprintf(&buf, ",numa_node=%d",
def->opts.pciopts.numaNode);
break;
case VIR_DOMAIN_CONTROLLER_MODEL_DMI_TO_PCI_BRIDGE:
if (def->opts.pciopts.modelName
== VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_NONE) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("autogenerated dmi-to-pci-bridge options not set"));
goto error;
}
modelName = virDomainControllerPCIModelNameTypeToString(def->opts.pciopts.modelName);
if (!modelName) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown dmi-to-pci-bridge model name value %d"),
def->opts.pciopts.modelName);
goto error;
}
if (def->opts.pciopts.modelName
!= VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_I82801B11_BRIDGE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("PCI controller model name '%s' "
"is not valid for a dmi-to-pci-bridge"),
modelName);
goto error;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("the dmi-to-pci-bridge (i82801b11-bridge) "
"controller is not supported in this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, "%s,id=%s", modelName, def->info.alias);
break;
case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT_PORT:
if (def->opts.pciopts.modelName
== VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_NONE) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("autogenerated pcie-root-port options not set"));
goto error;
}
modelName = virDomainControllerPCIModelNameTypeToString(def->opts.pciopts.modelName);
if (!modelName) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown pcie-root-port model name value %d"),
def->opts.pciopts.modelName);
goto error;
}
if (def->opts.pciopts.modelName
!= VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_IOH3420) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("PCI controller model name '%s' "
"is not valid for a pcie-root-port"),
modelName);
goto error;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_IOH3420)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("the pcie-root-port (ioh3420) "
"controller is not supported in this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, "%s,port=0x%x,chassis=%d,id=%s",
modelName, def->opts.pciopts.port,
def->opts.pciopts.chassis, def->info.alias);
break;
case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_SWITCH_UPSTREAM_PORT:
if (def->opts.pciopts.modelName
== VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_NONE) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("autogenerated pcie-switch-upstream-port options not set"));
goto error;
}
modelName = virDomainControllerPCIModelNameTypeToString(def->opts.pciopts.modelName);
if (!modelName) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown pcie-switch-upstream-port model name value %d"),
def->opts.pciopts.modelName);
goto error;
}
if (def->opts.pciopts.modelName
!= VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_X3130_UPSTREAM) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("PCI controller model name '%s' "
"is not valid for a pcie-switch-upstream-port"),
modelName);
goto error;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_X3130_UPSTREAM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("the pcie-switch-upstream-port (x3130-upstream) "
"controller is not supported in this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, "%s,id=%s", modelName, def->info.alias);
break;
case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_SWITCH_DOWNSTREAM_PORT:
if (def->opts.pciopts.modelName
== VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_NONE ||
def->opts.pciopts.chassis == -1 ||
def->opts.pciopts.port == -1) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("autogenerated pcie-switch-downstream-port "
"options not set"));
goto error;
}
modelName = virDomainControllerPCIModelNameTypeToString(def->opts.pciopts.modelName);
if (!modelName) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown pcie-switch-downstream-port model name value %d"),
def->opts.pciopts.modelName);
goto error;
}
if (def->opts.pciopts.modelName
!= VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_XIO3130_DOWNSTREAM) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("PCI controller model name '%s' "
"is not valid for a pcie-switch-downstream-port"),
modelName);
goto error;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_XIO3130_DOWNSTREAM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("The pcie-switch-downstream-port "
"(xio3130-downstream) controller "
"is not supported in this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, "%s,port=0x%x,chassis=%d,id=%s",
modelName, def->opts.pciopts.port,
def->opts.pciopts.chassis, def->info.alias);
break;
case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_EXPANDER_BUS:
if (def->opts.pciopts.modelName
== VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_NONE ||
def->opts.pciopts.busNr == -1) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("autogenerated pcie-expander-bus options not set"));
goto error;
}
modelName = virDomainControllerPCIModelNameTypeToString(def->opts.pciopts.modelName);
if (!modelName) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown pcie-expander-bus model name value %d"),
def->opts.pciopts.modelName);
goto error;
}
if (def->opts.pciopts.modelName
!= VIR_DOMAIN_CONTROLLER_PCI_MODEL_NAME_PXB_PCIE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("PCI controller model name '%s' "
"is not valid for a pcie-expander-bus"),
modelName);
goto error;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_PXB_PCIE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("the pxb-pcie controller "
"is not supported in this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, "%s,bus_nr=%d,id=%s",
modelName, def->opts.pciopts.busNr,
def->info.alias);
if (def->opts.pciopts.numaNode != -1)
virBufferAsprintf(&buf, ",numa_node=%d",
def->opts.pciopts.numaNode);
break;
}
break;
case VIR_DOMAIN_CONTROLLER_TYPE_IDE:
/* Since we currently only support the integrated IDE
* controller on various boards, if we ever get to here, it's
* because some other machinetype had an IDE controller
* specified, or one with a single IDE contraller had multiple
* ide controllers specified.
*/
if (qemuDomainMachineHasBuiltinIDE(domainDef))
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Only a single IDE controller is supported "
"for this machine type"));
else
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("IDE controllers are unsupported for "
"this QEMU binary or machine type"));
goto error;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Unsupported controller type: %s"),
virDomainControllerTypeToString(def->type));
goto error;
}
if (def->queues)
virBufferAsprintf(&buf, ",num_queues=%u", def->queues);
if (def->cmd_per_lun)
virBufferAsprintf(&buf, ",cmd_per_lun=%u", def->cmd_per_lun);
if (def->max_sectors)
virBufferAsprintf(&buf, ",max_sectors=%u", def->max_sectors);
qemuBuildIoEventFdStr(&buf, def->ioeventfd, qemuCaps);
if (qemuBuildDeviceAddressStr(&buf, domainDef, &def->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildControllerDevCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i, j;
int usbcontroller = 0;
bool usblegacy = false;
int contOrder[] = {
/*
* List of controller types that we add commandline args for,
* *in the order we want to add them*.
*
* The floppy controller is implicit on PIIX4 and older Q35
* machines. For newer Q35 machines it is added out of the
* controllers loop, after the floppy drives.
*
* We don't add PCI/PCIe root controller either, because it's
* implicit, but we do add PCI bridges and other PCI
* controllers, so we leave that in to check each
* one. Likewise, we don't do anything for the primary IDE
* controller on an i440fx machine or primary SATA on q35, but
* we do add those beyond these two exceptions.
*/
VIR_DOMAIN_CONTROLLER_TYPE_PCI,
VIR_DOMAIN_CONTROLLER_TYPE_USB,
VIR_DOMAIN_CONTROLLER_TYPE_SCSI,
VIR_DOMAIN_CONTROLLER_TYPE_IDE,
VIR_DOMAIN_CONTROLLER_TYPE_SATA,
VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL,
VIR_DOMAIN_CONTROLLER_TYPE_CCID,
};
for (j = 0; j < ARRAY_CARDINALITY(contOrder); j++) {
for (i = 0; i < def->ncontrollers; i++) {
virDomainControllerDefPtr cont = def->controllers[i];
char *devstr;
if (cont->type != contOrder[j])
continue;
/* skip USB controllers with type none.*/
if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_USB &&
cont->model == VIR_DOMAIN_CONTROLLER_MODEL_USB_NONE) {
usbcontroller = -1; /* mark we don't want a controller */
continue;
}
/* skip pci-root/pcie-root */
if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_PCI &&
(cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT ||
cont->model == VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT))
continue;
/* first SATA controller on Q35 machines is implicit */
if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_SATA &&
cont->idx == 0 && qemuDomainMachineIsQ35(def))
continue;
/* first IDE controller is implicit on various machines */
if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_IDE &&
cont->idx == 0 && qemuDomainMachineHasBuiltinIDE(def))
continue;
if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_USB &&
cont->model == -1 &&
!qemuDomainMachineIsQ35(def)) {
bool need_legacy = false;
/* We're not using legacy usb controller for q35 */
if (ARCH_IS_PPC64(def->os.arch)) {
/* For ppc64 the legacy was OHCI */
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PCI_OHCI))
need_legacy = true;
} else {
/* For anything else, we used PIIX3_USB_UHCI */
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PIIX3_USB_UHCI))
need_legacy = true;
}
if (need_legacy) {
if (usblegacy) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Multiple legacy USB controllers are "
"not supported"));
return -1;
}
usblegacy = true;
continue;
}
}
virCommandAddArg(cmd, "-device");
if (!(devstr = qemuBuildControllerDevStr(def, cont, qemuCaps,
&usbcontroller)))
return -1;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
}
}
if (usbcontroller == 0 &&
!qemuDomainMachineIsQ35(def) &&
!qemuDomainMachineIsVirt(def) &&
!ARCH_IS_S390(def->os.arch))
virCommandAddArg(cmd, "-usb");
return 0;
}
/**
* qemuBuildMemoryBackendStr:
* @size: size of the memory device in kibibytes
* @pagesize: size of the requested memory page in KiB, 0 for default
* @guestNode: NUMA node in the guest that the memory object will be attached
* to, or -1 if NUMA is not used in the guest
* @hostNodes: map of host nodes to alloc the memory in, NULL for default
* @autoNodeset: fallback nodeset in case of automatic numa placement
* @def: domain definition object
* @qemuCaps: qemu capabilities object
* @cfg: qemu driver config object
* @aliasPrefix: prefix string of the alias (to allow for multiple frontents)
* @id: index of the device (to construct the alias)
* @backendStr: returns the object string
*
* Formats the configuration string for the memory device backend according
* to the configuration. @pagesize and @hostNodes can be used to override the
* default source configuration, both are optional.
*
* Returns 0 on success, 1 if only the implicit memory-device-ram with no
* other configuration was used (to detect legacy configurations). Returns
* -1 in case of an error.
*/
int
qemuBuildMemoryBackendStr(unsigned long long size,
unsigned long long pagesize,
int guestNode,
virBitmapPtr userNodeset,
virBitmapPtr autoNodeset,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps,
virQEMUDriverConfigPtr cfg,
const char **backendType,
virJSONValuePtr *backendProps,
bool force)
{
virDomainHugePagePtr master_hugepage = NULL;
virDomainHugePagePtr hugepage = NULL;
virDomainNumatuneMemMode mode;
const long system_page_size = virGetSystemPageSizeKB();
virNumaMemAccess memAccess = VIR_NUMA_MEM_ACCESS_DEFAULT;
size_t i;
char *mem_path = NULL;
virBitmapPtr nodemask = NULL;
int ret = -1;
virJSONValuePtr props = NULL;
bool nodeSpecified = virDomainNumatuneNodeSpecified(def->numa, guestNode);
*backendProps = NULL;
*backendType = NULL;
if (guestNode >= 0) {
/* memory devices could provide a invalid guest node */
if (guestNode >= virDomainNumaGetNodeCount(def->numa)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("can't add memory backend for guest node '%d' as "
"the guest has only '%zu' NUMA nodes configured"),
guestNode, virDomainNumaGetNodeCount(def->numa));
return -1;
}
memAccess = virDomainNumaGetNodeMemoryAccessMode(def->numa, guestNode);
}
if (virDomainNumatuneGetMode(def->numa, guestNode, &mode) < 0 &&
virDomainNumatuneGetMode(def->numa, -1, &mode) < 0)
mode = VIR_DOMAIN_NUMATUNE_MEM_STRICT;
if (pagesize == 0) {
/* Find the huge page size we want to use */
for (i = 0; i < def->mem.nhugepages; i++) {
bool thisHugepage = false;
hugepage = &def->mem.hugepages[i];
if (!hugepage->nodemask) {
master_hugepage = hugepage;
continue;
}
/* just find the master hugepage in case we don't use NUMA */
if (guestNode < 0)
continue;
if (virBitmapGetBit(hugepage->nodemask, guestNode,
&thisHugepage) < 0) {
/* Ignore this error. It's not an error after all. Well,
* the nodemask for this <page/> can contain lower NUMA
* nodes than we are querying in here. */
continue;
}
if (thisHugepage) {
/* Hooray, we've found the page size */
break;
}
}
if (i == def->mem.nhugepages) {
/* We have not found specific huge page to be used with this
* NUMA node. Use the generic setting then (<page/> without any
* @nodemask) if possible. */
hugepage = master_hugepage;
}
if (hugepage)
pagesize = hugepage->size;
}
if (pagesize == system_page_size) {
/* However, if user specified to use "huge" page
* of regular system page size, it's as if they
* hasn't specified any huge pages at all. */
pagesize = 0;
hugepage = NULL;
}
if (!(props = virJSONValueNewObject()))
return -1;
if (pagesize || hugepage) {
if (pagesize) {
/* Now lets see, if the huge page we want to use is even mounted
* and ready to use */
for (i = 0; i < cfg->nhugetlbfs; i++) {
if (cfg->hugetlbfs[i].size == pagesize)
break;
}
if (i == cfg->nhugetlbfs) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unable to find any usable hugetlbfs mount for %llu KiB"),
pagesize);
goto cleanup;
}
if (!(mem_path = qemuGetHugepagePath(&cfg->hugetlbfs[i])))
goto cleanup;
} else {
if (!(mem_path = qemuGetDefaultHugepath(cfg->hugetlbfs,
cfg->nhugetlbfs)))
goto cleanup;
}
*backendType = "memory-backend-file";
if (virJSONValueObjectAdd(props,
"b:prealloc", true,
"s:mem-path", mem_path,
NULL) < 0)
goto cleanup;
switch (memAccess) {
case VIR_NUMA_MEM_ACCESS_SHARED:
if (virJSONValueObjectAdd(props, "b:share", true, NULL) < 0)
goto cleanup;
break;
case VIR_NUMA_MEM_ACCESS_PRIVATE:
if (virJSONValueObjectAdd(props, "b:share", false, NULL) < 0)
goto cleanup;
break;
case VIR_NUMA_MEM_ACCESS_DEFAULT:
case VIR_NUMA_MEM_ACCESS_LAST:
break;
}
} else {
if (memAccess) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Shared memory mapping is supported "
"only with hugepages"));
goto cleanup;
}
*backendType = "memory-backend-ram";
}
if (virJSONValueObjectAdd(props, "U:size", size * 1024, NULL) < 0)
goto cleanup;
if (userNodeset) {
nodemask = userNodeset;
} else {
if (virDomainNumatuneMaybeGetNodeset(def->numa, autoNodeset,
&nodemask, guestNode) < 0)
goto cleanup;
}
if (nodemask) {
if (!virNumaNodesetIsAvailable(nodemask))
goto cleanup;
if (virJSONValueObjectAdd(props,
"m:host-nodes", nodemask,
"S:policy", qemuNumaPolicyTypeToString(mode),
NULL) < 0)
goto cleanup;
}
/* If none of the following is requested... */
if (!pagesize && !userNodeset && !memAccess && !nodeSpecified && !force) {
/* report back that using the new backend is not necessary
* to achieve the desired configuration */
ret = 1;
} else {
/* otherwise check the required capability */
if (STREQ(*backendType, "memory-backend-file") &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_FILE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this qemu doesn't support the "
"memory-backend-file object"));
goto cleanup;
} else if (STREQ(*backendType, "memory-backend-ram") &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_RAM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this qemu doesn't support the "
"memory-backend-ram object"));
goto cleanup;
}
ret = 0;
}
*backendProps = props;
props = NULL;
cleanup:
virJSONValueFree(props);
VIR_FREE(mem_path);
return ret;
}
static int
qemuBuildMemoryCellBackendStr(virDomainDefPtr def,
virQEMUCapsPtr qemuCaps,
virQEMUDriverConfigPtr cfg,
size_t cell,
virBitmapPtr auto_nodeset,
char **backendStr)
{
virJSONValuePtr props = NULL;
char *alias = NULL;
const char *backendType;
int ret = -1;
int rc;
unsigned long long memsize = virDomainNumaGetNodeMemorySize(def->numa,
cell);
*backendStr = NULL;
if (virAsprintf(&alias, "ram-node%zu", cell) < 0)
goto cleanup;
if ((rc = qemuBuildMemoryBackendStr(memsize, 0, cell, NULL, auto_nodeset,
def, qemuCaps, cfg, &backendType,
&props, false)) < 0)
goto cleanup;
if (!(*backendStr = virQEMUBuildObjectCommandlineFromJSON(backendType,
alias,
props)))
goto cleanup;
ret = rc;
cleanup:
VIR_FREE(alias);
virJSONValueFree(props);
return ret;
}
static char *
qemuBuildMemoryDimmBackendStr(virDomainMemoryDefPtr mem,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps,
virQEMUDriverConfigPtr cfg,
virBitmapPtr auto_nodeset)
{
virJSONValuePtr props = NULL;
char *alias = NULL;
const char *backendType;
char *ret = NULL;
if (!mem->info.alias) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("memory device alias is not assigned"));
return NULL;
}
if (virAsprintf(&alias, "mem%s", mem->info.alias) < 0)
goto cleanup;
if (qemuBuildMemoryBackendStr(mem->size, mem->pagesize,
mem->targetNode, mem->sourceNodes, auto_nodeset,
def, qemuCaps, cfg,
&backendType, &props, true) < 0)
goto cleanup;
ret = virQEMUBuildObjectCommandlineFromJSON(backendType, alias, props);
cleanup:
VIR_FREE(alias);
virJSONValueFree(props);
return ret;
}
char *
qemuBuildMemoryDeviceStr(virDomainMemoryDefPtr mem)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (!mem->info.alias) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing alias for memory device"));
return NULL;
}
switch ((virDomainMemoryModel) mem->model) {
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
virBufferAddLit(&buf, "pc-dimm,");
if (mem->targetNode >= 0)
virBufferAsprintf(&buf, "node=%d,", mem->targetNode);
virBufferAsprintf(&buf, "memdev=mem%s,id=%s",
mem->info.alias, mem->info.alias);
if (mem->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_DIMM) {
virBufferAsprintf(&buf, ",slot=%d", mem->info.addr.dimm.slot);
virBufferAsprintf(&buf, ",addr=%llu", mem->info.addr.dimm.base);
}
break;
case VIR_DOMAIN_MEMORY_MODEL_NONE:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
break;
}
if (virBufferCheckError(&buf) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
char *
qemuBuildNicStr(virDomainNetDefPtr net,
const char *prefix,
int vlan)
{
char *str;
char macaddr[VIR_MAC_STRING_BUFLEN];
ignore_value(virAsprintf(&str,
"%smacaddr=%s,vlan=%d%s%s%s%s",
prefix ? prefix : "",
virMacAddrFormat(&net->mac, macaddr),
vlan,
(net->model ? ",model=" : ""),
(net->model ? net->model : ""),
(net->info.alias ? ",name=" : ""),
(net->info.alias ? net->info.alias : "")));
return str;
}
char *
qemuBuildNicDevStr(virDomainDefPtr def,
virDomainNetDefPtr net,
int vlan,
unsigned int bootindex,
size_t vhostfdSize,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *nic = net->model;
bool usingVirtio = false;
char macaddr[VIR_MAC_STRING_BUFLEN];
if (STREQ(net->model, "virtio")) {
if (net->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW)
nic = "virtio-net-ccw";
else if (net->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_S390)
nic = "virtio-net-s390";
else if (net->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_MMIO)
nic = "virtio-net-device";
else
nic = "virtio-net-pci";
usingVirtio = true;
}
virBufferAdd(&buf, nic, -1);
if (usingVirtio && net->driver.virtio.txmode) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_TX_ALG)) {
virBufferAddLit(&buf, ",tx=");
switch (net->driver.virtio.txmode) {
case VIR_DOMAIN_NET_VIRTIO_TX_MODE_IOTHREAD:
virBufferAddLit(&buf, "bh");
break;
case VIR_DOMAIN_NET_VIRTIO_TX_MODE_TIMER:
virBufferAddLit(&buf, "timer");
break;
default:
/* this should never happen, if it does, we need
* to add another case to this switch.
*/
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unrecognized virtio-net-pci 'tx' option"));
goto error;
}
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("virtio-net-pci 'tx' option not supported in this QEMU binary"));
goto error;
}
}
if (usingVirtio) {
qemuBuildIoEventFdStr(&buf, net->driver.virtio.ioeventfd, qemuCaps);
if (net->driver.virtio.event_idx &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_NET_EVENT_IDX)) {
virBufferAsprintf(&buf, ",event_idx=%s",
virTristateSwitchTypeToString(net->driver.virtio.event_idx));
}
if (net->driver.virtio.host.csum) {
virBufferAsprintf(&buf, ",csum=%s",
virTristateSwitchTypeToString(net->driver.virtio.host.csum));
}
if (net->driver.virtio.host.gso) {
virBufferAsprintf(&buf, ",gso=%s",
virTristateSwitchTypeToString(net->driver.virtio.host.gso));
}
if (net->driver.virtio.host.tso4) {
virBufferAsprintf(&buf, ",host_tso4=%s",
virTristateSwitchTypeToString(net->driver.virtio.host.tso4));
}
if (net->driver.virtio.host.tso6) {
virBufferAsprintf(&buf, ",host_tso6=%s",
virTristateSwitchTypeToString(net->driver.virtio.host.tso6));
}
if (net->driver.virtio.host.ecn) {
virBufferAsprintf(&buf, ",host_ecn=%s",
virTristateSwitchTypeToString(net->driver.virtio.host.ecn));
}
if (net->driver.virtio.host.ufo) {
virBufferAsprintf(&buf, ",host_ufo=%s",
virTristateSwitchTypeToString(net->driver.virtio.host.ufo));
}
if (net->driver.virtio.host.mrg_rxbuf) {
virBufferAsprintf(&buf, ",mrg_rxbuf=%s",
virTristateSwitchTypeToString(net->driver.virtio.host.mrg_rxbuf));
}
if (net->driver.virtio.guest.csum) {
virBufferAsprintf(&buf, ",guest_csum=%s",
virTristateSwitchTypeToString(net->driver.virtio.guest.csum));
}
if (net->driver.virtio.guest.tso4) {
virBufferAsprintf(&buf, ",guest_tso4=%s",
virTristateSwitchTypeToString(net->driver.virtio.guest.tso4));
}
if (net->driver.virtio.guest.tso6) {
virBufferAsprintf(&buf, ",guest_tso6=%s",
virTristateSwitchTypeToString(net->driver.virtio.guest.tso6));
}
if (net->driver.virtio.guest.ecn) {
virBufferAsprintf(&buf, ",guest_ecn=%s",
virTristateSwitchTypeToString(net->driver.virtio.guest.ecn));
}
if (net->driver.virtio.guest.ufo) {
virBufferAsprintf(&buf, ",guest_ufo=%s",
virTristateSwitchTypeToString(net->driver.virtio.guest.ufo));
}
}
if (usingVirtio && vhostfdSize > 1) {
if (net->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) {
/* ccw provides a one to one relation of fds to queues and
* does not support the vectors option
*/
virBufferAddLit(&buf, ",mq=on");
} else {
/* As advised at http://www.linux-kvm.org/page/Multiqueue
* we should add vectors=2*N+2 where N is the vhostfdSize
*/
virBufferAsprintf(&buf, ",mq=on,vectors=%zu", 2 * vhostfdSize + 2);
}
}
if (vlan == -1)
virBufferAsprintf(&buf, ",netdev=host%s", net->info.alias);
else
virBufferAsprintf(&buf, ",vlan=%d", vlan);
virBufferAsprintf(&buf, ",id=%s", net->info.alias);
virBufferAsprintf(&buf, ",mac=%s",
virMacAddrFormat(&net->mac, macaddr));
if (qemuBuildDeviceAddressStr(&buf, def, &net->info, qemuCaps) < 0)
goto error;
if (qemuBuildRomStr(&buf, &net->info) < 0)
goto error;
if (bootindex && virQEMUCapsGet(qemuCaps, QEMU_CAPS_BOOTINDEX))
virBufferAsprintf(&buf, ",bootindex=%u", bootindex);
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
char *
qemuBuildHostNetStr(virDomainNetDefPtr net,
virQEMUDriverPtr driver,
char type_sep,
int vlan,
char **tapfd,
size_t tapfdSize,
char **vhostfd,
size_t vhostfdSize)
{
bool is_tap = false;
virBuffer buf = VIR_BUFFER_INITIALIZER;
virDomainNetType netType = virDomainNetGetActualType(net);
virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
size_t i;
if (net->script && netType != VIR_DOMAIN_NET_TYPE_ETHERNET) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("scripts are not supported on interfaces of type %s"),
virDomainNetTypeToString(netType));
virObjectUnref(cfg);
return NULL;
}
switch (netType) {
/*
* If type='bridge', and we're running as privileged user
* or -netdev bridge is not supported then it will fall
* through, -net tap,fd
*/
case VIR_DOMAIN_NET_TYPE_BRIDGE:
case VIR_DOMAIN_NET_TYPE_NETWORK:
case VIR_DOMAIN_NET_TYPE_DIRECT:
case VIR_DOMAIN_NET_TYPE_ETHERNET:
virBufferAsprintf(&buf, "tap%c", type_sep);
/* for one tapfd 'fd=' shall be used,
* for more than one 'fds=' is the right choice */
if (tapfdSize == 1) {
virBufferAsprintf(&buf, "fd=%s", tapfd[0]);
} else {
virBufferAddLit(&buf, "fds=");
for (i = 0; i < tapfdSize; i++) {
if (i)
virBufferAddChar(&buf, ':');
virBufferAdd(&buf, tapfd[i], -1);
}
}
type_sep = ',';
is_tap = true;
break;
case VIR_DOMAIN_NET_TYPE_CLIENT:
virBufferAsprintf(&buf, "socket%cconnect=%s:%d",
type_sep,
net->data.socket.address,
net->data.socket.port);
type_sep = ',';
break;
case VIR_DOMAIN_NET_TYPE_SERVER:
virBufferAsprintf(&buf, "socket%clisten=%s:%d",
type_sep,
net->data.socket.address ? net->data.socket.address
: "",
net->data.socket.port);
type_sep = ',';
break;
case VIR_DOMAIN_NET_TYPE_MCAST:
virBufferAsprintf(&buf, "socket%cmcast=%s:%d",
type_sep,
net->data.socket.address,
net->data.socket.port);
type_sep = ',';
break;
case VIR_DOMAIN_NET_TYPE_UDP:
virBufferAsprintf(&buf, "socket%cudp=%s:%d,localaddr=%s:%d",
type_sep,
net->data.socket.address,
net->data.socket.port,
net->data.socket.localaddr,
net->data.socket.localport);
type_sep = ',';
break;
case VIR_DOMAIN_NET_TYPE_USER:
default:
virBufferAddLit(&buf, "user");
break;
}
if (vlan >= 0) {
virBufferAsprintf(&buf, "%cvlan=%d", type_sep, vlan);
if (net->info.alias)
virBufferAsprintf(&buf, ",name=host%s",
net->info.alias);
} else {
virBufferAsprintf(&buf, "%cid=host%s",
type_sep, net->info.alias);
}
if (is_tap) {
if (vhostfdSize) {
virBufferAddLit(&buf, ",vhost=on,");
if (vhostfdSize == 1) {
virBufferAsprintf(&buf, "vhostfd=%s", vhostfd[0]);
} else {
virBufferAddLit(&buf, "vhostfds=");
for (i = 0; i < vhostfdSize; i++) {
if (i)
virBufferAddChar(&buf, ':');
virBufferAdd(&buf, vhostfd[i], -1);
}
}
}
if (net->tune.sndbuf_specified)
virBufferAsprintf(&buf, ",sndbuf=%lu", net->tune.sndbuf);
}
virObjectUnref(cfg);
if (virBufferCheckError(&buf) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
static char *
qemuBuildWatchdogDevStr(const virDomainDef *def,
virDomainWatchdogDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *model = virDomainWatchdogModelTypeToString(dev->model);
if (!model) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing watchdog model"));
goto error;
}
virBufferAsprintf(&buf, "%s,id=%s", model, dev->info.alias);
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildWatchdogCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
virDomainWatchdogDefPtr watchdog = def->watchdog;
char *optstr;
const char *action;
int actualAction;
if (!def->watchdog)
return 0;
virCommandAddArg(cmd, "-device");
optstr = qemuBuildWatchdogDevStr(def, watchdog, qemuCaps);
if (!optstr)
return -1;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
/* qemu doesn't have a 'dump' action; we tell qemu to 'pause', then
libvirt listens for the watchdog event, and we perform the dump
ourselves. so convert 'dump' to 'pause' for the qemu cli */
actualAction = watchdog->action;
if (watchdog->action == VIR_DOMAIN_WATCHDOG_ACTION_DUMP)
actualAction = VIR_DOMAIN_WATCHDOG_ACTION_PAUSE;
action = virDomainWatchdogActionTypeToString(actualAction);
if (!action) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("invalid watchdog action"));
return -1;
}
virCommandAddArgList(cmd, "-watchdog-action", action, NULL);
return 0;
}
static int
qemuBuildMemballoonCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (STRPREFIX(def->os.machine, "s390-virtio") &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_S390) && def->memballoon)
def->memballoon->model = VIR_DOMAIN_MEMBALLOON_MODEL_NONE;
if (!virDomainDefHasMemballoon(def))
return 0;
if (def->memballoon->model != VIR_DOMAIN_MEMBALLOON_MODEL_VIRTIO) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Memory balloon device type '%s' is not supported by this version of qemu"),
virDomainMemballoonModelTypeToString(def->memballoon->model));
return -1;
}
switch (def->memballoon->info.type) {
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI:
virBufferAddLit(&buf, "virtio-balloon-pci");
break;
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW:
virBufferAddLit(&buf, "virtio-balloon-ccw");
break;
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_MMIO:
virBufferAddLit(&buf, "virtio-balloon-device");
break;
default:
virReportError(VIR_ERR_XML_ERROR,
_("memballoon unsupported with address type '%s'"),
virDomainDeviceAddressTypeToString(def->memballoon->info.type));
goto error;
}
virBufferAsprintf(&buf, ",id=%s", def->memballoon->info.alias);
if (qemuBuildDeviceAddressStr(&buf, def, &def->memballoon->info, qemuCaps) < 0)
goto error;
if (def->memballoon->autodeflate != VIR_TRISTATE_SWITCH_ABSENT) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_BALLOON_AUTODEFLATE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("deflate-on-oom is not supported by this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, ",deflate-on-oom=%s",
virTristateSwitchTypeToString(def->memballoon->autodeflate));
}
virCommandAddArg(cmd, "-device");
virCommandAddArgBuffer(cmd, &buf);
return 0;
error:
virBufferFreeAndReset(&buf);
return -1;
}
static char *
qemuBuildNVRAMDevStr(virDomainNVRAMDefPtr dev)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (dev->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_SPAPRVIO &&
dev->info.addr.spaprvio.has_reg) {
virBufferAsprintf(&buf, "spapr-nvram.reg=0x%llx",
dev->info.addr.spaprvio.reg);
} else {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("nvram address type must be spaprvio"));
goto error;
}
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildNVRAMCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
if (!def->nvram)
return 0;
if (qemuDomainMachineIsPSeries(def)) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_NVRAM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("nvram device is not supported by "
"this QEMU binary"));
return -1;
}
char *optstr;
virCommandAddArg(cmd, "-global");
optstr = qemuBuildNVRAMDevStr(def->nvram);
if (!optstr)
return -1;
if (optstr)
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("nvram device is only supported for PPC64"));
return -1;
}
return 0;
}
static char *
qemuBuildVirtioInputDevStr(const virDomainDef *def,
virDomainInputDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *suffix;
if (dev->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
suffix = "-pci";
} else if (dev->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_MMIO) {
suffix = "-device";
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported address type %s for virtio input device"),
virDomainDeviceAddressTypeToString(dev->info.type));
goto error;
}
switch ((virDomainInputType) dev->type) {
case VIR_DOMAIN_INPUT_TYPE_MOUSE:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_MOUSE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("virtio-mouse is not supported by this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, "virtio-mouse%s,id=%s", suffix, dev->info.alias);
break;
case VIR_DOMAIN_INPUT_TYPE_TABLET:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_TABLET)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("virtio-tablet is not supported by this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, "virtio-tablet%s,id=%s", suffix, dev->info.alias);
break;
case VIR_DOMAIN_INPUT_TYPE_KBD:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_KEYBOARD)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("virtio-keyboard is not supported by this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, "virtio-keyboard%s,id=%s", suffix, dev->info.alias);
break;
case VIR_DOMAIN_INPUT_TYPE_PASSTHROUGH:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_INPUT_HOST)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("virtio-input-host is not supported by this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, "virtio-input-host%s,id=%s,evdev=", suffix, dev->info.alias);
virQEMUBuildBufferEscapeComma(&buf, dev->source.evdev);
break;
case VIR_DOMAIN_INPUT_TYPE_LAST:
break;
}
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static char *
qemuBuildUSBInputDevStr(const virDomainDef *def,
virDomainInputDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
switch (dev->type) {
case VIR_DOMAIN_INPUT_TYPE_MOUSE:
virBufferAsprintf(&buf, "usb-mouse,id=%s", dev->info.alias);
break;
case VIR_DOMAIN_INPUT_TYPE_TABLET:
virBufferAsprintf(&buf, "usb-tablet,id=%s", dev->info.alias);
break;
case VIR_DOMAIN_INPUT_TYPE_KBD:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_USB_KBD))
goto error;
virBufferAsprintf(&buf, "usb-kbd,id=%s", dev->info.alias);
break;
}
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildInputCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->ninputs; i++) {
virDomainInputDefPtr input = def->inputs[i];
if (input->bus == VIR_DOMAIN_INPUT_BUS_USB) {
char *optstr;
virCommandAddArg(cmd, "-device");
if (!(optstr = qemuBuildUSBInputDevStr(def, input, qemuCaps)))
return -1;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
} else if (input->bus == VIR_DOMAIN_INPUT_BUS_VIRTIO) {
char *optstr;
virCommandAddArg(cmd, "-device");
if (!(optstr = qemuBuildVirtioInputDevStr(def, input, qemuCaps)))
return -1;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
}
}
return 0;
}
static char *
qemuBuildSoundDevStr(const virDomainDef *def,
virDomainSoundDefPtr sound,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *model = NULL;
/* Hack for devices with different names in QEMU and libvirt */
switch ((virDomainSoundModel) sound->model) {
case VIR_DOMAIN_SOUND_MODEL_ES1370:
model = "ES1370";
break;
case VIR_DOMAIN_SOUND_MODEL_AC97:
model = "AC97";
break;
case VIR_DOMAIN_SOUND_MODEL_ICH6:
model = "intel-hda";
break;
case VIR_DOMAIN_SOUND_MODEL_USB:
model = "usb-audio";
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_USB_AUDIO)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("usb-audio controller is not supported "
"by this QEMU binary"));
goto error;
}
break;
case VIR_DOMAIN_SOUND_MODEL_ICH9:
model = "ich9-intel-hda";
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_ICH9_INTEL_HDA)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("The ich9-intel-hda audio controller "
"is not supported in this QEMU binary"));
goto error;
}
break;
case VIR_DOMAIN_SOUND_MODEL_SB16:
model = "sb16";
break;
case VIR_DOMAIN_SOUND_MODEL_PCSPK: /* pc-speaker is handled separately */
case VIR_DOMAIN_SOUND_MODEL_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("sound card model '%s' is not supported by qemu"),
virDomainSoundModelTypeToString(sound->model));
goto error;
}
virBufferAsprintf(&buf, "%s,id=%s", model, sound->info.alias);
if (qemuBuildDeviceAddressStr(&buf, def, &sound->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuSoundCodecTypeToCaps(int type)
{
switch (type) {
case VIR_DOMAIN_SOUND_CODEC_TYPE_DUPLEX:
return QEMU_CAPS_HDA_DUPLEX;
case VIR_DOMAIN_SOUND_CODEC_TYPE_MICRO:
return QEMU_CAPS_HDA_MICRO;
default:
return -1;
}
}
static char *
qemuBuildSoundCodecStr(virDomainSoundDefPtr sound,
virDomainSoundCodecDefPtr codec,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *stype;
int type, flags;
type = codec->type;
stype = qemuSoundCodecTypeToString(type);
flags = qemuSoundCodecTypeToCaps(type);
if (flags == -1 || !virQEMUCapsGet(qemuCaps, flags)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("%s not supported in this QEMU binary"), stype);
goto error;
}
virBufferAsprintf(&buf, "%s,id=%s-codec%d,bus=%s.0,cad=%d",
stype, sound->info.alias, codec->cad, sound->info.alias, codec->cad);
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildSoundCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i, j;
for (i = 0; i < def->nsounds; i++) {
virDomainSoundDefPtr sound = def->sounds[i];
char *str = NULL;
/* Sadly pcspk device doesn't use -device syntax. Fortunately
* we don't need to set any PCI address on it, so we don't
* mind too much */
if (sound->model == VIR_DOMAIN_SOUND_MODEL_PCSPK) {
virCommandAddArgList(cmd, "-soundhw", "pcspk", NULL);
} else {
virCommandAddArg(cmd, "-device");
if (!(str = qemuBuildSoundDevStr(def, sound, qemuCaps)))
return -1;
virCommandAddArg(cmd, str);
VIR_FREE(str);
if (sound->model == VIR_DOMAIN_SOUND_MODEL_ICH6 ||
sound->model == VIR_DOMAIN_SOUND_MODEL_ICH9) {
char *codecstr = NULL;
for (j = 0; j < sound->ncodecs; j++) {
virCommandAddArg(cmd, "-device");
if (!(codecstr =
qemuBuildSoundCodecStr(sound, sound->codecs[j],
qemuCaps))) {
return -1;
}
virCommandAddArg(cmd, codecstr);
VIR_FREE(codecstr);
}
if (j == 0) {
virDomainSoundCodecDef codec = {
VIR_DOMAIN_SOUND_CODEC_TYPE_DUPLEX,
0
};
virCommandAddArg(cmd, "-device");
if (!(codecstr =
qemuBuildSoundCodecStr(sound, &codec,
qemuCaps))) {
return -1;
}
virCommandAddArg(cmd, codecstr);
VIR_FREE(codecstr);
}
}
}
}
return 0;
}
static char *
qemuBuildDeviceVideoStr(const virDomainDef *def,
virDomainVideoDefPtr video,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *model;
if (video->primary) {
model = qemuDeviceVideoTypeToString(video->type);
if (!model || STREQ(model, "")) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("video type %s is not supported with QEMU"),
virDomainVideoTypeToString(video->type));
goto error;
}
} else {
if (video->type != VIR_DOMAIN_VIDEO_TYPE_QXL) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("non-primary video device must be type of 'qxl'"));
goto error;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_QXL)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("only one video card is currently supported"));
goto error;
}
model = "qxl";
}
virBufferAsprintf(&buf, "%s,id=%s", model, video->info.alias);
if (video->accel && video->accel->accel2d == VIR_TRISTATE_SWITCH_ON) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("qemu does not support the accel2d setting"));
goto error;
}
if (video->accel && video->accel->accel3d == VIR_TRISTATE_SWITCH_ON) {
if (video->type != VIR_DOMAIN_VIDEO_TYPE_VIRTIO ||
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_GPU_VIRGL)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("%s 3d acceleration is not supported"),
virDomainVideoTypeToString(video->type));
goto error;
}
virBufferAsprintf(&buf, ",virgl=%s",
virTristateSwitchTypeToString(video->accel->accel3d));
}
if (video->type == VIR_DOMAIN_VIDEO_TYPE_QXL) {
if (video->vram > (UINT_MAX / 1024)) {
virReportError(VIR_ERR_OVERFLOW,
_("value for 'vram' must be less than '%u'"),
UINT_MAX / 1024);
goto error;
}
if (video->ram > (UINT_MAX / 1024)) {
virReportError(VIR_ERR_OVERFLOW,
_("value for 'ram' must be less than '%u'"),
UINT_MAX / 1024);
goto error;
}
if (video->ram) {
/* QEMU accepts bytes for ram_size. */
virBufferAsprintf(&buf, ",ram_size=%u", video->ram * 1024);
}
if (video->vram) {
/* QEMU accepts bytes for vram_size. */
virBufferAsprintf(&buf, ",vram_size=%u", video->vram * 1024);
}
if ((video->primary &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_VGA_VRAM64)) ||
(!video->primary &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_VRAM64))) {
/* QEMU accepts mebibytes for vram64_size_mb. */
virBufferAsprintf(&buf, ",vram64_size_mb=%u", video->vram64 / 1024);
}
if ((video->primary &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_VGA_VGAMEM)) ||
(!video->primary &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_VGAMEM))) {
/* QEMU accepts mebibytes for vgamem_mb. */
virBufferAsprintf(&buf, ",vgamem_mb=%u", video->vgamem / 1024);
}
if ((video->primary &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_VGA_MAX_OUTPUTS)) ||
(!video->primary &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_MAX_OUTPUTS))) {
if (video->heads)
virBufferAsprintf(&buf, ",max_outputs=%u", video->heads);
} else {
video->heads = 0;
}
} else if (video->vram &&
((video->type == VIR_DOMAIN_VIDEO_TYPE_VGA &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_VGA_VGAMEM)) ||
(video->type == VIR_DOMAIN_VIDEO_TYPE_VMVGA &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_VMWARE_SVGA_VGAMEM)))) {
if (video->vram < 1024) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("value for 'vram' must be at least 1 MiB "
"(1024 KiB)"));
goto error;
}
virBufferAsprintf(&buf, ",vgamem_mb=%u", video->vram / 1024);
}
if (qemuBuildDeviceAddressStr(&buf, def, &video->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildVideoCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
int primaryVideoType;
if (!def->videos)
return 0;
primaryVideoType = def->videos[0]->type;
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIDEO_PRIMARY) &&
((primaryVideoType == VIR_DOMAIN_VIDEO_TYPE_VGA &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VGA)) ||
(primaryVideoType == VIR_DOMAIN_VIDEO_TYPE_CIRRUS &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_CIRRUS_VGA)) ||
(primaryVideoType == VIR_DOMAIN_VIDEO_TYPE_VMVGA &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VMWARE_SVGA)) ||
(primaryVideoType == VIR_DOMAIN_VIDEO_TYPE_QXL &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_QXL_VGA)) ||
(primaryVideoType == VIR_DOMAIN_VIDEO_TYPE_VIRTIO &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_GPU)))) {
for (i = 0; i < def->nvideos; i++) {
char *str;
virCommandAddArg(cmd, "-device");
if (!(str = qemuBuildDeviceVideoStr(def, def->videos[i],
qemuCaps)))
return -1;
virCommandAddArg(cmd, str);
VIR_FREE(str);
}
} else {
if (primaryVideoType == VIR_DOMAIN_VIDEO_TYPE_XEN) {
/* nothing - vga has no effect on Xen pvfb */
} else {
if ((primaryVideoType == VIR_DOMAIN_VIDEO_TYPE_QXL) &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VGA_QXL)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU does not support QXL graphics adapters"));
return -1;
}
const char *vgastr = qemuVideoTypeToString(primaryVideoType);
if (!vgastr || STREQ(vgastr, "")) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("video type %s is not supported with QEMU"),
virDomainVideoTypeToString(primaryVideoType));
return -1;
}
virCommandAddArgList(cmd, "-vga", vgastr, NULL);
/* If we cannot use --device option to specify the video device
* in QEMU we will fallback to the old --vga option. To get the
* correct device name for the --vga option the 'qemuVideo' is
* used, but to set some device attributes we need to use the
* --global option and for that we need to specify the device
* name the same as for --device option and for that we need to
* use 'qemuDeviceVideo'.
*
* See 'Graphics Devices' section in docs/qdev-device-use.txt in
* QEMU repository.
*/
const char *dev = qemuDeviceVideoTypeToString(primaryVideoType);
if (def->videos[0]->type == VIR_DOMAIN_VIDEO_TYPE_QXL &&
(def->videos[0]->vram || def->videos[0]->ram)) {
unsigned int ram = def->videos[0]->ram;
unsigned int vram = def->videos[0]->vram;
unsigned int vram64 = def->videos[0]->vram64;
unsigned int vgamem = def->videos[0]->vgamem;
if (vram > (UINT_MAX / 1024)) {
virReportError(VIR_ERR_OVERFLOW,
_("value for 'vram' must be less than '%u'"),
UINT_MAX / 1024);
return -1;
}
if (ram > (UINT_MAX / 1024)) {
virReportError(VIR_ERR_OVERFLOW,
_("value for 'ram' must be less than '%u'"),
UINT_MAX / 1024);
return -1;
}
if (ram) {
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.ram_size=%u",
dev, ram * 1024);
}
if (vram) {
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.vram_size=%u",
dev, vram * 1024);
}
if (vram64 &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_VGA_VRAM64)) {
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.vram64_size_mb=%u",
dev, vram64 / 1024);
}
if (vgamem &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_VGA_VGAMEM)) {
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.vgamem_mb=%u",
dev, vgamem / 1024);
}
}
if (def->videos[0]->vram &&
((primaryVideoType == VIR_DOMAIN_VIDEO_TYPE_VGA &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_VGA_VGAMEM)) ||
(primaryVideoType == VIR_DOMAIN_VIDEO_TYPE_VMVGA &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_VMWARE_SVGA_VGAMEM)))) {
unsigned int vram = def->videos[0]->vram;
if (vram < 1024) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("value for 'vgamem' must be at "
"least 1 MiB (1024 KiB)"));
return -1;
}
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.vgamem_mb=%u",
dev, vram / 1024);
}
}
for (i = 1; i < def->nvideos; i++) {
char *str;
if (def->videos[i]->type != VIR_DOMAIN_VIDEO_TYPE_QXL) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("video type %s is only valid as primary video card"),
virDomainVideoTypeToString(def->videos[0]->type));
return -1;
}
virCommandAddArg(cmd, "-device");
if (!(str = qemuBuildDeviceVideoStr(def, def->videos[i],
qemuCaps)))
return -1;
virCommandAddArg(cmd, str);
VIR_FREE(str);
}
}
return 0;
}
int
qemuOpenPCIConfig(virDomainHostdevDefPtr dev)
{
virDomainHostdevSubsysPCIPtr pcisrc = &dev->source.subsys.u.pci;
char *path = NULL;
int configfd = -1;
if (virAsprintf(&path, "/sys/bus/pci/devices/%04x:%02x:%02x.%01x/config",
pcisrc->addr.domain, pcisrc->addr.bus,
pcisrc->addr.slot, pcisrc->addr.function) < 0)
return -1;
configfd = open(path, O_RDWR, 0);
if (configfd < 0)
virReportSystemError(errno, _("Failed opening %s"), path);
VIR_FREE(path);
return configfd;
}
char *
qemuBuildPCIHostdevDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev,
unsigned int bootIndex, /* used iff dev->info->bootIndex == 0 */
const char *configfd,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
virDomainHostdevSubsysPCIPtr pcisrc = &dev->source.subsys.u.pci;
int backend = pcisrc->backend;
/* caller has to assign proper passthrough backend type */
switch ((virDomainHostdevSubsysPCIBackendType) backend) {
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_KVM:
virBufferAddLit(&buf, "pci-assign");
if (configfd && *configfd)
virBufferAsprintf(&buf, ",configfd=%s", configfd);
break;
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO:
virBufferAddLit(&buf, "vfio-pci");
break;
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_DEFAULT:
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_XEN:
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_TYPE_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("invalid PCI passthrough type '%s'"),
virDomainHostdevSubsysPCIBackendTypeToString(backend));
goto error;
}
virBufferAddLit(&buf, ",host=");
if (pcisrc->addr.domain) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_HOST_PCI_MULTIDOMAIN)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("non-zero domain='%.4x' in host device PCI address "
"not supported in this QEMU binary"),
pcisrc->addr.domain);
goto error;
}
virBufferAsprintf(&buf, "%.4x:", pcisrc->addr.domain);
}
virBufferAsprintf(&buf, "%.2x:%.2x.%.1x",
pcisrc->addr.bus, pcisrc->addr.slot,
pcisrc->addr.function);
virBufferAsprintf(&buf, ",id=%s", dev->info->alias);
if (dev->info->bootIndex)
bootIndex = dev->info->bootIndex;
if (bootIndex)
virBufferAsprintf(&buf, ",bootindex=%u", bootIndex);
if (qemuBuildDeviceAddressStr(&buf, def, dev->info, qemuCaps) < 0)
goto error;
if (qemuBuildRomStr(&buf, dev->info) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
char *
qemuBuildUSBHostdevDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
virDomainHostdevSubsysUSBPtr usbsrc = &dev->source.subsys.u.usb;
if (!dev->missing && !usbsrc->bus && !usbsrc->device) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("USB host device is missing bus/device information"));
return NULL;
}
virBufferAddLit(&buf, "usb-host");
if (!dev->missing) {
virBufferAsprintf(&buf, ",hostbus=%d,hostaddr=%d",
usbsrc->bus, usbsrc->device);
}
virBufferAsprintf(&buf, ",id=%s", dev->info->alias);
if (dev->info->bootIndex)
virBufferAsprintf(&buf, ",bootindex=%u", dev->info->bootIndex);
if (qemuBuildDeviceAddressStr(&buf, def, dev->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static char *
qemuBuildHubDevStr(const virDomainDef *def,
virDomainHubDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (dev->type != VIR_DOMAIN_HUB_TYPE_USB) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("hub type %s not supported"),
virDomainHubTypeToString(dev->type));
goto error;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_USB_HUB)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("usb-hub not supported by QEMU binary"));
goto error;
}
virBufferAddLit(&buf, "usb-hub");
virBufferAsprintf(&buf, ",id=%s", dev->info.alias);
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildHubCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->nhubs; i++) {
virDomainHubDefPtr hub = def->hubs[i];
char *optstr;
virCommandAddArg(cmd, "-device");
if (!(optstr = qemuBuildHubDevStr(def, hub, qemuCaps)))
return -1;
virCommandAddArg(cmd, optstr);
VIR_FREE(optstr);
}
return 0;
}
static char *
qemuBuildSCSIHostHostdevDrvStr(virDomainHostdevDefPtr dev)
{
virDomainHostdevSubsysSCSIPtr scsisrc = &dev->source.subsys.u.scsi;
virDomainHostdevSubsysSCSIHostPtr scsihostsrc = &scsisrc->u.host;
return virSCSIDeviceGetSgName(NULL,
scsihostsrc->adapter,
scsihostsrc->bus,
scsihostsrc->target,
scsihostsrc->unit);
}
static char *
qemuBuildSCSIiSCSIHostdevDrvStr(virDomainHostdevDefPtr dev)
{
char *source = NULL;
virStorageSource src;
qemuDomainHostdevPrivatePtr hostdevPriv = QEMU_DOMAIN_HOSTDEV_PRIVATE(dev);
memset(&src, 0, sizeof(src));
virDomainHostdevSubsysSCSIPtr scsisrc = &dev->source.subsys.u.scsi;
virDomainHostdevSubsysSCSIiSCSIPtr iscsisrc = &scsisrc->u.iscsi;
src.protocol = VIR_STORAGE_NET_PROTOCOL_ISCSI;
src.path = iscsisrc->path;
src.hosts = iscsisrc->hosts;
src.nhosts = iscsisrc->nhosts;
/* Rather than pull what we think we want - use the network disk code */
source = qemuBuildNetworkDriveStr(&src, hostdevPriv->secinfo);
return source;
}
char *
qemuBuildSCSIHostdevDrvStr(virDomainHostdevDefPtr dev)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
char *source = NULL;
virDomainHostdevSubsysSCSIPtr scsisrc = &dev->source.subsys.u.scsi;
if (scsisrc->protocol == VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI) {
if (!(source = qemuBuildSCSIiSCSIHostdevDrvStr(dev)))
goto error;
virBufferAsprintf(&buf, "file=%s,if=none,format=raw", source);
} else {
if (!(source = qemuBuildSCSIHostHostdevDrvStr(dev)))
goto error;
virBufferAsprintf(&buf, "file=/dev/%s,if=none", source);
}
virBufferAsprintf(&buf, ",id=%s-%s",
virDomainDeviceAddressTypeToString(dev->info->type),
dev->info->alias);
if (dev->readonly)
virBufferAddLit(&buf, ",readonly=on");
if (virBufferCheckError(&buf) < 0)
goto error;
VIR_FREE(source);
return virBufferContentAndReset(&buf);
error:
VIR_FREE(source);
virBufferFreeAndReset(&buf);
return NULL;
}
char *
qemuBuildSCSIHostdevDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
int model = -1;
const char *contAlias;
model = virDomainDeviceFindControllerModel(def, dev->info,
VIR_DOMAIN_CONTROLLER_TYPE_SCSI);
if (qemuDomainSetSCSIControllerModel(def, qemuCaps, &model) < 0)
goto error;
if (model == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSILOGIC) {
if (dev->info->addr.drive.target != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("target must be 0 for scsi host device "
"if its controller model is 'lsilogic'"));
goto error;
}
if (dev->info->addr.drive.unit > 7) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("unit must be not more than 7 for scsi host "
"device if its controller model is 'lsilogic'"));
goto error;
}
}
virBufferAddLit(&buf, "scsi-generic");
if (!(contAlias = virDomainControllerAliasFind(def, VIR_DOMAIN_CONTROLLER_TYPE_SCSI,
dev->info->addr.drive.controller)))
goto error;
if (model == VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSILOGIC) {
virBufferAsprintf(&buf, ",bus=%s.%d,scsi-id=%d",
contAlias,
dev->info->addr.drive.bus,
dev->info->addr.drive.unit);
} else {
virBufferAsprintf(&buf, ",bus=%s.0,channel=%d,scsi-id=%d,lun=%d",
contAlias,
dev->info->addr.drive.bus,
dev->info->addr.drive.target,
dev->info->addr.drive.unit);
}
virBufferAsprintf(&buf, ",drive=%s-%s,id=%s",
virDomainDeviceAddressTypeToString(dev->info->type),
dev->info->alias, dev->info->alias);
if (dev->info->bootIndex)
virBufferAsprintf(&buf, ",bootindex=%u", dev->info->bootIndex);
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildChrChardevFileStr(virLogManagerPtr logManager,
virCommandPtr cmd,
const virDomainDef *def,
virBufferPtr buf,
const char *filearg, const char *fileval,
const char *appendarg, int appendval)
{
if (logManager) {
char *fdset, *fdpath;
int flags = 0;
int logfd;
if (appendval == VIR_TRISTATE_SWITCH_OFF)
flags |= VIR_LOG_MANAGER_PROTOCOL_DOMAIN_OPEN_LOG_FILE_TRUNCATE;
if ((logfd = virLogManagerDomainOpenLogFile(logManager,
"qemu",
def->uuid,
def->name,
fileval,
flags,
NULL, NULL)) < 0)
return -1;
virCommandPassFD(cmd, logfd, VIR_COMMAND_PASS_FD_CLOSE_PARENT);
if (!(fdset = qemuVirCommandGetFDSet(cmd, logfd)))
return -1;
virCommandAddArg(cmd, "-add-fd");
virCommandAddArg(cmd, fdset);
VIR_FREE(fdset);
if (!(fdpath = qemuVirCommandGetDevSet(cmd, logfd)))
return -1;
virBufferAsprintf(buf, ",%s=%s,%s=on", filearg, fdpath, appendarg);
VIR_FREE(fdpath);
} else {
virBufferAsprintf(buf, ",%s=%s", filearg, fileval);
if (appendval != VIR_TRISTATE_SWITCH_ABSENT) {
virBufferAsprintf(buf, ",%s=%s", appendarg,
virTristateSwitchTypeToString(appendval));
}
}
return 0;
}
/* This function outputs a -chardev command line option which describes only the
* host side of the character device */
static char *
qemuBuildChrChardevStr(virLogManagerPtr logManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg ATTRIBUTE_UNUSED,
const virDomainDef *def,
const virDomainChrSourceDef *dev,
const char *alias,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
bool telnet;
switch (dev->type) {
case VIR_DOMAIN_CHR_TYPE_NULL:
virBufferAsprintf(&buf, "null,id=char%s", alias);
break;
case VIR_DOMAIN_CHR_TYPE_VC:
virBufferAsprintf(&buf, "vc,id=char%s", alias);
break;
case VIR_DOMAIN_CHR_TYPE_PTY:
virBufferAsprintf(&buf, "pty,id=char%s", alias);
break;
case VIR_DOMAIN_CHR_TYPE_DEV:
virBufferAsprintf(&buf, "%s,id=char%s,path=%s",
STRPREFIX(alias, "parallel") ? "parport" : "tty",
alias, dev->data.file.path);
break;
case VIR_DOMAIN_CHR_TYPE_FILE:
virBufferAsprintf(&buf, "file,id=char%s", alias);
if (dev->data.file.append != VIR_TRISTATE_SWITCH_ABSENT &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV_FILE_APPEND)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("append not supported in this QEMU binary"));
goto error;
}
if (qemuBuildChrChardevFileStr(virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV_FILE_APPEND) ?
logManager : NULL, cmd, def, &buf,
"path", dev->data.file.path,
"append", dev->data.file.append) < 0)
goto error;
break;
case VIR_DOMAIN_CHR_TYPE_PIPE:
virBufferAsprintf(&buf, "pipe,id=char%s,path=%s", alias,
dev->data.file.path);
break;
case VIR_DOMAIN_CHR_TYPE_STDIO:
virBufferAsprintf(&buf, "stdio,id=char%s", alias);
break;
case VIR_DOMAIN_CHR_TYPE_UDP: {
const char *connectHost = dev->data.udp.connectHost;
const char *bindHost = dev->data.udp.bindHost;
const char *bindService = dev->data.udp.bindService;
if (connectHost == NULL)
connectHost = "";
if (bindHost == NULL)
bindHost = "";
if (bindService == NULL)
bindService = "0";
virBufferAsprintf(&buf,
"udp,id=char%s,host=%s,port=%s,localaddr=%s,"
"localport=%s",
alias,
connectHost,
dev->data.udp.connectService,
bindHost, bindService);
break;
}
case VIR_DOMAIN_CHR_TYPE_TCP:
telnet = dev->data.tcp.protocol == VIR_DOMAIN_CHR_TCP_PROTOCOL_TELNET;
virBufferAsprintf(&buf,
"socket,id=char%s,host=%s,port=%s%s%s",
alias,
dev->data.tcp.host,
dev->data.tcp.service,
telnet ? ",telnet" : "",
dev->data.tcp.listen ? ",server,nowait" : "");
break;
case VIR_DOMAIN_CHR_TYPE_UNIX:
virBufferAsprintf(&buf, "socket,id=char%s,path=", alias);
virQEMUBuildBufferEscapeComma(&buf, dev->data.nix.path);
if (dev->data.nix.listen)
virBufferAddLit(&buf, ",server,nowait");
break;
case VIR_DOMAIN_CHR_TYPE_SPICEVMC:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV_SPICEVMC)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("spicevmc not supported in this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, "spicevmc,id=char%s,name=%s", alias,
virDomainChrSpicevmcTypeToString(dev->data.spicevmc));
break;
case VIR_DOMAIN_CHR_TYPE_SPICEPORT:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV_SPICEPORT)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("spiceport not supported in this QEMU binary"));
goto error;
}
virBufferAsprintf(&buf, "spiceport,id=char%s,name=%s", alias,
dev->data.spiceport.channel);
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported chardev '%s'"),
virDomainChrTypeToString(dev->type));
goto error;
}
if (dev->logfile) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV_LOGFILE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("logfile not supported in this QEMU binary"));
goto error;
}
if (qemuBuildChrChardevFileStr(logManager, cmd, def, &buf,
"logfile", dev->logfile,
"logappend", dev->logappend) < 0)
goto error;
}
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildHostdevCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
unsigned int *bootHostdevNet)
{
size_t i;
for (i = 0; i < def->nhostdevs; i++) {
virDomainHostdevDefPtr hostdev = def->hostdevs[i];
virDomainHostdevSubsysPtr subsys = &hostdev->source.subsys;
char *devstr;
if (hostdev->info->bootIndex) {
if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS ||
(subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI &&
subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB &&
subsys->type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("booting from assigned devices is only "
"supported for PCI, USB and SCSI devices"));
return -1;
} else {
if (subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) {
if (subsys->u.pci.backend ==
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO) {
if (!virQEMUCapsGet(qemuCaps,
QEMU_CAPS_VFIO_PCI_BOOTINDEX)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("booting from PCI devices assigned with VFIO "
"is not supported with this version of qemu"));
return -1;
}
} else {
if (!virQEMUCapsGet(qemuCaps,
QEMU_CAPS_PCI_BOOTINDEX)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("booting from assigned PCI devices is not "
"supported with this version of qemu"));
return -1;
}
}
}
if (subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_USB_HOST_BOOTINDEX)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("booting from assigned USB devices is not "
"supported with this version of qemu"));
return -1;
}
if (subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI &&
!virQEMUCapsGet(qemuCaps,
QEMU_CAPS_DEVICE_SCSI_GENERIC_BOOTINDEX)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("booting from assigned SCSI devices is not"
" supported with this version of qemu"));
return -1;
}
}
}
/* USB */
if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB) {
virCommandAddArg(cmd, "-device");
if (!(devstr =
qemuBuildUSBHostdevDevStr(def, hostdev, qemuCaps)))
return -1;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
}
/* PCI */
if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) {
int backend = subsys->u.pci.backend;
if (backend == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VFIO_PCI)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("VFIO PCI device assignment is not "
"supported by this version of qemu"));
return -1;
}
}
char *configfd_name = NULL;
unsigned int bootIndex = hostdev->info->bootIndex;
/* bootNet will be non-0 if boot order was set and no other
* net devices were encountered
*/
if (hostdev->parent.type == VIR_DOMAIN_DEVICE_NET &&
bootIndex == 0) {
bootIndex = *bootHostdevNet;
*bootHostdevNet = 0;
}
if ((backend != VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_PCI_CONFIGFD)) {
int configfd = qemuOpenPCIConfig(hostdev);
if (configfd >= 0) {
if (virAsprintf(&configfd_name, "%d", configfd) < 0) {
VIR_FORCE_CLOSE(configfd);
return -1;
}
virCommandPassFD(cmd, configfd,
VIR_COMMAND_PASS_FD_CLOSE_PARENT);
}
}
virCommandAddArg(cmd, "-device");
devstr = qemuBuildPCIHostdevDevStr(def, hostdev, bootIndex,
configfd_name, qemuCaps);
VIR_FREE(configfd_name);
if (!devstr)
return -1;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
}
/* SCSI */
if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
subsys->type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_SCSI_GENERIC)) {
char *drvstr;
virCommandAddArg(cmd, "-drive");
if (!(drvstr = qemuBuildSCSIHostdevDrvStr(hostdev)))
return -1;
virCommandAddArg(cmd, drvstr);
VIR_FREE(drvstr);
virCommandAddArg(cmd, "-device");
if (!(devstr = qemuBuildSCSIHostdevDevStr(def, hostdev,
qemuCaps)))
return -1;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("SCSI passthrough is not supported by this version of qemu"));
return -1;
}
}
}
return 0;
}
static char *
qemuBuildChrArgStr(const virDomainChrSourceDef *dev,
const char *prefix)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (dev->logfile) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("logfile not supported in this QEMU binary"));
goto error;
}
if (prefix)
virBufferAdd(&buf, prefix, strlen(prefix));
switch ((virDomainChrType)dev->type) {
case VIR_DOMAIN_CHR_TYPE_NULL:
virBufferAddLit(&buf, "null");
break;
case VIR_DOMAIN_CHR_TYPE_VC:
virBufferAddLit(&buf, "vc");
break;
case VIR_DOMAIN_CHR_TYPE_PTY:
virBufferAddLit(&buf, "pty");
break;
case VIR_DOMAIN_CHR_TYPE_DEV:
virBufferStrcat(&buf, dev->data.file.path, NULL);
break;
case VIR_DOMAIN_CHR_TYPE_FILE:
virBufferAsprintf(&buf, "file:%s", dev->data.file.path);
break;
case VIR_DOMAIN_CHR_TYPE_PIPE:
virBufferAsprintf(&buf, "pipe:%s", dev->data.file.path);
break;
case VIR_DOMAIN_CHR_TYPE_STDIO:
virBufferAddLit(&buf, "stdio");
break;
case VIR_DOMAIN_CHR_TYPE_UDP: {
const char *connectHost = dev->data.udp.connectHost;
const char *bindHost = dev->data.udp.bindHost;
const char *bindService = dev->data.udp.bindService;
if (connectHost == NULL)
connectHost = "";
if (bindHost == NULL)
bindHost = "";
if (bindService == NULL)
bindService = "0";
virBufferAsprintf(&buf, "udp:%s:%s@%s:%s",
connectHost,
dev->data.udp.connectService,
bindHost,
bindService);
break;
}
case VIR_DOMAIN_CHR_TYPE_TCP:
if (dev->data.tcp.protocol == VIR_DOMAIN_CHR_TCP_PROTOCOL_TELNET) {
virBufferAsprintf(&buf, "telnet:%s:%s%s",
dev->data.tcp.host,
dev->data.tcp.service,
dev->data.tcp.listen ? ",server,nowait" : "");
} else {
virBufferAsprintf(&buf, "tcp:%s:%s%s",
dev->data.tcp.host,
dev->data.tcp.service,
dev->data.tcp.listen ? ",server,nowait" : "");
}
break;
case VIR_DOMAIN_CHR_TYPE_UNIX:
virBufferAsprintf(&buf, "unix:%s%s",
dev->data.nix.path,
dev->data.nix.listen ? ",server,nowait" : "");
break;
case VIR_DOMAIN_CHR_TYPE_SPICEVMC:
case VIR_DOMAIN_CHR_TYPE_SPICEPORT:
case VIR_DOMAIN_CHR_TYPE_NMDM:
case VIR_DOMAIN_CHR_TYPE_LAST:
break;
}
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildMonitorCommandLine(virLogManagerPtr logManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps,
const virDomainChrSourceDef *monitor_chr,
bool monitor_json)
{
char *chrdev;
if (!monitor_chr)
return 0;
/* Use -chardev if it's available */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV)) {
if (!(chrdev = qemuBuildChrChardevStr(logManager, cmd, cfg, def,
monitor_chr, "monitor",
qemuCaps)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, chrdev);
VIR_FREE(chrdev);
virCommandAddArg(cmd, "-mon");
virCommandAddArgFormat(cmd,
"chardev=charmonitor,id=monitor,mode=%s",
monitor_json ? "control" : "readline");
} else {
const char *prefix = NULL;
if (monitor_json)
prefix = "control,";
virCommandAddArg(cmd, "-monitor");
if (!(chrdev = qemuBuildChrArgStr(monitor_chr, prefix)))
return -1;
virCommandAddArg(cmd, chrdev);
VIR_FREE(chrdev);
}
return 0;
}
static char *
qemuBuildVirtioSerialPortDevStr(const virDomainDef *def,
virDomainChrDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *contAlias;
switch (dev->deviceType) {
case VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE:
virBufferAddLit(&buf, "virtconsole");
break;
case VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL:
/* Legacy syntax '-device spicevmc' */
if (dev->source.type == VIR_DOMAIN_CHR_TYPE_SPICEVMC &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_SPICEVMC)) {
virBufferAddLit(&buf, "spicevmc");
} else {
virBufferAddLit(&buf, "virtserialport");
}
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Cannot use virtio serial for parallel/serial devices"));
return NULL;
}
if (dev->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE &&
dev->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW &&
dev->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_S390) {
/* Check it's a virtio-serial address */
if (dev->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_SERIAL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("virtio serial device has invalid address type"));
goto error;
}
contAlias = virDomainControllerAliasFind(def, VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL,
dev->info.addr.vioserial.controller);
if (!contAlias)
goto error;
virBufferAsprintf(&buf, ",bus=%s.%d,nr=%d", contAlias,
dev->info.addr.vioserial.bus,
dev->info.addr.vioserial.port);
}
if (dev->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL &&
dev->source.type == VIR_DOMAIN_CHR_TYPE_SPICEVMC &&
dev->target.name &&
STRNEQ(dev->target.name, "com.redhat.spice.0")) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Unsupported spicevmc target name '%s'"),
dev->target.name);
goto error;
}
if (!(dev->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL &&
dev->source.type == VIR_DOMAIN_CHR_TYPE_SPICEVMC &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_SPICEVMC))) {
virBufferAsprintf(&buf, ",chardev=char%s,id=%s",
dev->info.alias, dev->info.alias);
if (dev->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL &&
(dev->source.type == VIR_DOMAIN_CHR_TYPE_SPICEVMC ||
dev->target.name)) {
virBufferAsprintf(&buf, ",name=%s", dev->target.name
? dev->target.name : "com.redhat.spice.0");
}
} else {
virBufferAsprintf(&buf, ",id=%s", dev->info.alias);
}
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static char *
qemuBuildSclpDevStr(virDomainChrDefPtr dev)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (dev->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE) {
switch (dev->targetType) {
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLP:
virBufferAddLit(&buf, "sclpconsole");
break;
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLPLM:
virBufferAddLit(&buf, "sclplmconsole");
break;
}
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Cannot use slcp with devices other than console"));
goto error;
}
virBufferAsprintf(&buf, ",chardev=char%s,id=%s",
dev->info.alias, dev->info.alias);
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildRNGBackendChrdevStr(virLogManagerPtr logManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virDomainRNGDefPtr rng,
virQEMUCapsPtr qemuCaps,
char **chr)
{
*chr = NULL;
switch ((virDomainRNGBackend) rng->backend) {
case VIR_DOMAIN_RNG_BACKEND_RANDOM:
case VIR_DOMAIN_RNG_BACKEND_LAST:
/* no chardev backend is needed */
return 0;
case VIR_DOMAIN_RNG_BACKEND_EGD:
if (!(*chr = qemuBuildChrChardevStr(logManager, cmd, cfg, def,
rng->source.chardev,
rng->info.alias, qemuCaps)))
return -1;
}
return 0;
}
int
qemuBuildRNGBackendProps(virDomainRNGDefPtr rng,
virQEMUCapsPtr qemuCaps,
const char **type,
virJSONValuePtr *props)
{
char *charBackendAlias = NULL;
int ret = -1;
switch ((virDomainRNGBackend) rng->backend) {
case VIR_DOMAIN_RNG_BACKEND_RANDOM:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_RNG_RANDOM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this qemu doesn't support the rng-random "
"backend"));
goto cleanup;
}
*type = "rng-random";
if (virJSONValueObjectCreate(props, "s:filename", rng->source.file,
NULL) < 0)
goto cleanup;
break;
case VIR_DOMAIN_RNG_BACKEND_EGD:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_RNG_EGD)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this qemu doesn't support the rng-egd "
"backend"));
goto cleanup;
}
*type = "rng-egd";
if (virAsprintf(&charBackendAlias, "char%s", rng->info.alias) < 0)
goto cleanup;
if (virJSONValueObjectCreate(props, "s:chardev", charBackendAlias,
NULL) < 0)
goto cleanup;
break;
case VIR_DOMAIN_RNG_BACKEND_LAST:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("unknown rng-random backend"));
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(charBackendAlias);
return ret;
}
static char *
qemuBuildRNGBackendStr(virDomainRNGDefPtr rng,
virQEMUCapsPtr qemuCaps)
{
const char *type = NULL;
char *alias = NULL;
virJSONValuePtr props = NULL;
char *ret = NULL;
if (virAsprintf(&alias, "obj%s", rng->info.alias) < 0)
goto cleanup;
if (qemuBuildRNGBackendProps(rng, qemuCaps, &type, &props) < 0)
goto cleanup;
ret = virQEMUBuildObjectCommandlineFromJSON(type, alias, props);
cleanup:
VIR_FREE(alias);
virJSONValueFree(props);
return ret;
}
char *
qemuBuildRNGDevStr(const virDomainDef *def,
virDomainRNGDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (dev->model != VIR_DOMAIN_RNG_MODEL_VIRTIO ||
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_RNG)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("this qemu doesn't support RNG device type '%s'"),
virDomainRNGModelTypeToString(dev->model));
goto error;
}
if (!qemuCheckCCWS390AddressSupport(def, dev->info, qemuCaps,
dev->source.file))
goto error;
if (dev->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW)
virBufferAsprintf(&buf, "virtio-rng-ccw,rng=obj%s,id=%s",
dev->info.alias, dev->info.alias);
else if (dev->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_S390)
virBufferAsprintf(&buf, "virtio-rng-s390,rng=obj%s,id=%s",
dev->info.alias, dev->info.alias);
else if (dev->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_MMIO)
virBufferAsprintf(&buf, "virtio-rng-device,rng=obj%s,id=%s",
dev->info.alias, dev->info.alias);
else
virBufferAsprintf(&buf, "virtio-rng-pci,rng=obj%s,id=%s",
dev->info.alias, dev->info.alias);
if (dev->rate > 0) {
virBufferAsprintf(&buf, ",max-bytes=%u", dev->rate);
if (dev->period)
virBufferAsprintf(&buf, ",period=%u", dev->period);
else
virBufferAddLit(&buf, ",period=1000");
}
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildRNGCommandLine(virLogManagerPtr logManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->nrngs; i++) {
virDomainRNGDefPtr rng = def->rngs[i];
char *tmp;
if (!rng->info.alias) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("RNG device is missing alias"));
return -1;
}
/* possibly add character device for backend */
if (qemuBuildRNGBackendChrdevStr(logManager, cmd, cfg, def,
rng, qemuCaps, &tmp) < 0)
return -1;
if (tmp) {
virCommandAddArgList(cmd, "-chardev", tmp, NULL);
VIR_FREE(tmp);
}
/* add the RNG source backend */
if (!(tmp = qemuBuildRNGBackendStr(rng, qemuCaps)))
return -1;
virCommandAddArgList(cmd, "-object", tmp, NULL);
VIR_FREE(tmp);
/* add the device */
if (!(tmp = qemuBuildRNGDevStr(def, rng, qemuCaps)))
return -1;
virCommandAddArgList(cmd, "-device", tmp, NULL);
VIR_FREE(tmp);
}
return 0;
}
static char *qemuBuildSmbiosBiosStr(virSysinfoBIOSDefPtr def)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (!def)
return NULL;
virBufferAddLit(&buf, "type=0");
/* 0:Vendor */
if (def->vendor)
virBufferAsprintf(&buf, ",vendor=%s", def->vendor);
/* 0:BIOS Version */
if (def->version)
virBufferAsprintf(&buf, ",version=%s", def->version);
/* 0:BIOS Release Date */
if (def->date)
virBufferAsprintf(&buf, ",date=%s", def->date);
/* 0:System BIOS Major Release and 0:System BIOS Minor Release */
if (def->release)
virBufferAsprintf(&buf, ",release=%s", def->release);
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static char *qemuBuildSmbiosSystemStr(virSysinfoSystemDefPtr def,
bool skip_uuid)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (!def ||
(!def->manufacturer && !def->product && !def->version &&
!def->serial && (!def->uuid || skip_uuid) &&
def->sku && !def->family))
return NULL;
virBufferAddLit(&buf, "type=1");
/* 1:Manufacturer */
if (def->manufacturer)
virBufferAsprintf(&buf, ",manufacturer=%s",
def->manufacturer);
/* 1:Product Name */
if (def->product)
virBufferAsprintf(&buf, ",product=%s", def->product);
/* 1:Version */
if (def->version)
virBufferAsprintf(&buf, ",version=%s", def->version);
/* 1:Serial Number */
if (def->serial)
virBufferAsprintf(&buf, ",serial=%s", def->serial);
/* 1:UUID */
if (def->uuid && !skip_uuid)
virBufferAsprintf(&buf, ",uuid=%s", def->uuid);
/* 1:SKU Number */
if (def->sku)
virBufferAsprintf(&buf, ",sku=%s", def->sku);
/* 1:Family */
if (def->family)
virBufferAsprintf(&buf, ",family=%s", def->family);
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static char *qemuBuildSmbiosBaseBoardStr(virSysinfoBaseBoardDefPtr def)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (!def)
return NULL;
virBufferAddLit(&buf, "type=2");
/* 2:Manufacturer */
if (def->manufacturer)
virBufferAsprintf(&buf, ",manufacturer=%s",
def->manufacturer);
/* 2:Product Name */
if (def->product)
virBufferAsprintf(&buf, ",product=%s", def->product);
/* 2:Version */
if (def->version)
virBufferAsprintf(&buf, ",version=%s", def->version);
/* 2:Serial Number */
if (def->serial)
virBufferAsprintf(&buf, ",serial=%s", def->serial);
/* 2:Asset Tag */
if (def->asset)
virBufferAsprintf(&buf, ",asset=%s", def->asset);
/* 2:Location */
if (def->location)
virBufferAsprintf(&buf, ",location=%s", def->location);
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildSmbiosCommandLine(virCommandPtr cmd,
virQEMUDriverPtr driver,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
virSysinfoDefPtr source = NULL;
bool skip_uuid = false;
if (def->os.smbios_mode == VIR_DOMAIN_SMBIOS_NONE ||
def->os.smbios_mode == VIR_DOMAIN_SMBIOS_EMULATE)
return 0;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SMBIOS_TYPE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("the QEMU binary %s does not support smbios settings"),
def->emulator);
return -1;
}
/* should we really error out or just warn in those cases ? */
if (def->os.smbios_mode == VIR_DOMAIN_SMBIOS_HOST) {
if (driver->hostsysinfo == NULL) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Host SMBIOS information is not available"));
return -1;
}
source = driver->hostsysinfo;
/* Host and guest uuid must differ, by definition of UUID. */
skip_uuid = true;
} else if (def->os.smbios_mode == VIR_DOMAIN_SMBIOS_SYSINFO) {
if (def->sysinfo == NULL) {
virReportError(VIR_ERR_XML_ERROR,
_("Domain '%s' sysinfo are not available"),
def->name);
return -1;
}
source = def->sysinfo;
/* domain_conf guaranteed that system_uuid matches guest uuid. */
}
if (source != NULL) {
char *smbioscmd;
smbioscmd = qemuBuildSmbiosBiosStr(source->bios);
if (smbioscmd != NULL) {
virCommandAddArgList(cmd, "-smbios", smbioscmd, NULL);
VIR_FREE(smbioscmd);
}
smbioscmd = qemuBuildSmbiosSystemStr(source->system, skip_uuid);
if (smbioscmd != NULL) {
virCommandAddArgList(cmd, "-smbios", smbioscmd, NULL);
VIR_FREE(smbioscmd);
}
if (source->nbaseBoard > 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("qemu does not support more than "
"one entry to Type 2 in SMBIOS table"));
return -1;
}
for (i = 0; i < source->nbaseBoard; i++) {
if (!(smbioscmd =
qemuBuildSmbiosBaseBoardStr(source->baseBoard + i)))
return -1;
virCommandAddArgList(cmd, "-smbios", smbioscmd, NULL);
VIR_FREE(smbioscmd);
}
}
return 0;
}
static int
qemuBuildSgaCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
/* Serial graphics adapter */
if (def->os.bios.useserial == VIR_TRISTATE_BOOL_YES) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SGA)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("qemu does not support SGA"));
return -1;
}
if (!def->nserials) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("need at least one serial port to use SGA"));
return -1;
}
virCommandAddArgList(cmd, "-device", "sga", NULL);
}
return 0;
}
static char *
qemuBuildClockArgStr(virDomainClockDefPtr def)
{
size_t i;
virBuffer buf = VIR_BUFFER_INITIALIZER;
switch (def->offset) {
case VIR_DOMAIN_CLOCK_OFFSET_UTC:
virBufferAddLit(&buf, "base=utc");
break;
case VIR_DOMAIN_CLOCK_OFFSET_LOCALTIME:
case VIR_DOMAIN_CLOCK_OFFSET_TIMEZONE:
virBufferAddLit(&buf, "base=localtime");
break;
case VIR_DOMAIN_CLOCK_OFFSET_VARIABLE: {
time_t now = time(NULL);
struct tm nowbits;
if (def->data.variable.basis == VIR_DOMAIN_CLOCK_BASIS_LOCALTIME) {
long localOffset;
/* in the case of basis='localtime', rather than trying to
* keep that basis (and associated offset from UTC) in the
* status and deal with adding in the difference each time
* there is an RTC_CHANGE event, it is simpler and less
* error prone to just convert the adjustment an offset
* from UTC right now (and change the status to
* "basis='utc' to reflect this). This eliminates
* potential errors in both RTC_CHANGE events and in
* migration (in the case that the status of DST, or the
* timezone of the destination host, changed relative to
* startup).
*/
if (virTimeLocalOffsetFromUTC(&localOffset) < 0)
goto error;
def->data.variable.adjustment += localOffset;
def->data.variable.basis = VIR_DOMAIN_CLOCK_BASIS_UTC;
}
now += def->data.variable.adjustment;
gmtime_r(&now, &nowbits);
/* when an RTC_CHANGE event is received from qemu, we need to
* have the adjustment used at domain start time available to
* compute the new offset from UTC. As this new value is
* itself stored in def->data.variable.adjustment, we need to
* save a copy of it now.
*/
def->data.variable.adjustment0 = def->data.variable.adjustment;
virBufferAsprintf(&buf, "base=%d-%02d-%02dT%02d:%02d:%02d",
nowbits.tm_year + 1900,
nowbits.tm_mon + 1,
nowbits.tm_mday,
nowbits.tm_hour,
nowbits.tm_min,
nowbits.tm_sec);
} break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported clock offset '%s'"),
virDomainClockOffsetTypeToString(def->offset));
goto error;
}
/* Look for an 'rtc' timer element, and add in appropriate
* clock= and driftfix= */
for (i = 0; i < def->ntimers; i++) {
if (def->timers[i]->name == VIR_DOMAIN_TIMER_NAME_RTC) {
switch (def->timers[i]->track) {
case -1: /* unspecified - use hypervisor default */
break;
case VIR_DOMAIN_TIMER_TRACK_BOOT:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported rtc timer track '%s'"),
virDomainTimerTrackTypeToString(def->timers[i]->track));
goto error;
case VIR_DOMAIN_TIMER_TRACK_GUEST:
virBufferAddLit(&buf, ",clock=vm");
break;
case VIR_DOMAIN_TIMER_TRACK_WALL:
virBufferAddLit(&buf, ",clock=host");
break;
}
switch (def->timers[i]->tickpolicy) {
case -1:
case VIR_DOMAIN_TIMER_TICKPOLICY_DELAY:
/* This is the default - missed ticks delivered when
next scheduled, at normal rate */
break;
case VIR_DOMAIN_TIMER_TICKPOLICY_CATCHUP:
/* deliver ticks at a faster rate until caught up */
virBufferAddLit(&buf, ",driftfix=slew");
break;
case VIR_DOMAIN_TIMER_TICKPOLICY_MERGE:
case VIR_DOMAIN_TIMER_TICKPOLICY_DISCARD:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported rtc timer tickpolicy '%s'"),
virDomainTimerTickpolicyTypeToString(def->timers[i]->tickpolicy));
goto error;
}
break; /* no need to check other timers - there is only one rtc */
}
}
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
/* NOTE: Building of commands can change def->clock->data.* values, so
* virDomainDef is not const here.
*/
static int
qemuBuildClockCommandLine(virCommandPtr cmd,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_RTC)) {
char *rtcopt;
virCommandAddArg(cmd, "-rtc");
if (!(rtcopt = qemuBuildClockArgStr(&def->clock)))
return -1;
virCommandAddArg(cmd, rtcopt);
VIR_FREE(rtcopt);
} else {
switch (def->clock.offset) {
case VIR_DOMAIN_CLOCK_OFFSET_LOCALTIME:
case VIR_DOMAIN_CLOCK_OFFSET_TIMEZONE:
virCommandAddArg(cmd, "-localtime");
break;
case VIR_DOMAIN_CLOCK_OFFSET_UTC:
/* Nothing, its the default */
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported clock offset '%s'"),
virDomainClockOffsetTypeToString(def->clock.offset));
return -1;
}
}
if (def->clock.offset == VIR_DOMAIN_CLOCK_OFFSET_TIMEZONE &&
def->clock.data.timezone) {
virCommandAddEnvPair(cmd, "TZ", def->clock.data.timezone);
}
for (i = 0; i < def->clock.ntimers; i++) {
switch ((virDomainTimerNameType) def->clock.timers[i]->name) {
case VIR_DOMAIN_TIMER_NAME_PLATFORM:
case VIR_DOMAIN_TIMER_NAME_TSC:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported timer type (name) '%s'"),
virDomainTimerNameTypeToString(def->clock.timers[i]->name));
return -1;
case VIR_DOMAIN_TIMER_NAME_KVMCLOCK:
case VIR_DOMAIN_TIMER_NAME_HYPERVCLOCK:
/* Timers above are handled when building -cpu. */
case VIR_DOMAIN_TIMER_NAME_LAST:
break;
case VIR_DOMAIN_TIMER_NAME_RTC:
/* This has already been taken care of (in qemuBuildClockArgStr)
if QEMU_CAPS_RTC is set (mutually exclusive with
QEMUD_FLAG_RTC_TD_HACK) */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_RTC_TD_HACK)) {
switch (def->clock.timers[i]->tickpolicy) {
case -1:
case VIR_DOMAIN_TIMER_TICKPOLICY_DELAY:
/* the default - do nothing */
break;
case VIR_DOMAIN_TIMER_TICKPOLICY_CATCHUP:
virCommandAddArg(cmd, "-rtc-td-hack");
break;
case VIR_DOMAIN_TIMER_TICKPOLICY_MERGE:
case VIR_DOMAIN_TIMER_TICKPOLICY_DISCARD:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported rtc tickpolicy '%s'"),
virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
return -1;
}
} else if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_RTC) &&
(def->clock.timers[i]->tickpolicy
!= VIR_DOMAIN_TIMER_TICKPOLICY_DELAY) &&
(def->clock.timers[i]->tickpolicy != -1)) {
/* a non-default rtc policy was given, but there is no
way to implement it in this version of qemu */
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported rtc tickpolicy '%s'"),
virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
return -1;
}
break;
case VIR_DOMAIN_TIMER_NAME_PIT:
switch (def->clock.timers[i]->tickpolicy) {
case -1:
case VIR_DOMAIN_TIMER_TICKPOLICY_DELAY:
/* delay is the default if we don't have kernel
(-no-kvm-pit), otherwise, the default is catchup. */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM_PIT_TICK_POLICY))
virCommandAddArgList(cmd, "-global",
"kvm-pit.lost_tick_policy=discard", NULL);
else if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NO_KVM_PIT))
virCommandAddArg(cmd, "-no-kvm-pit-reinjection");
break;
case VIR_DOMAIN_TIMER_TICKPOLICY_CATCHUP:
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NO_KVM_PIT) ||
virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM_PIT_TICK_POLICY)) {
/* do nothing - this is default for kvm-pit */
} else if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_TDF)) {
/* -tdf switches to 'catchup' with userspace pit. */
virCommandAddArg(cmd, "-tdf");
} else {
/* can't catchup if we have neither pit mode */
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported pit tickpolicy '%s'"),
virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
return -1;
}
break;
case VIR_DOMAIN_TIMER_TICKPOLICY_MERGE:
case VIR_DOMAIN_TIMER_TICKPOLICY_DISCARD:
/* no way to support these modes for pit in qemu */
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported pit tickpolicy '%s'"),
virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
return -1;
}
break;
case VIR_DOMAIN_TIMER_NAME_HPET:
/* the only meaningful attribute for hpet is "present". If
* present is -1, that means it wasn't specified, and
* should be left at the default for the
* hypervisor. "default" when -no-hpet exists is "yes",
* and when -no-hpet doesn't exist is "no". "confusing"?
* "yes"! */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NO_HPET)) {
if (def->clock.timers[i]->present == 0)
virCommandAddArg(cmd, "-no-hpet");
} else {
/* no hpet timer available. The only possible action
is to raise an error if present="yes" */
if (def->clock.timers[i]->present == 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("hpet timer is not supported"));
return -1;
}
}
break;
}
}
return 0;
}
static int
qemuBuildPMCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
bool monitor_json)
{
bool allowReboot = true;
/* Only add -no-reboot option if each event destroys domain */
if (def->onReboot == VIR_DOMAIN_LIFECYCLE_DESTROY &&
def->onPoweroff == VIR_DOMAIN_LIFECYCLE_DESTROY &&
(def->onCrash == VIR_DOMAIN_LIFECYCLE_CRASH_DESTROY ||
def->onCrash == VIR_DOMAIN_LIFECYCLE_CRASH_COREDUMP_DESTROY)) {
allowReboot = false;
virCommandAddArg(cmd, "-no-reboot");
}
/* If JSON monitor is enabled, we can receive an event
* when QEMU stops. If we use no-shutdown, then we can
* watch for this event and do a soft/warm reboot.
*/
if (monitor_json && allowReboot &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_NO_SHUTDOWN)) {
virCommandAddArg(cmd, "-no-shutdown");
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NO_ACPI)) {
if (def->features[VIR_DOMAIN_FEATURE_ACPI] != VIR_TRISTATE_SWITCH_ON)
virCommandAddArg(cmd, "-no-acpi");
}
/* We fall back to PIIX4_PM even for q35, since it's what we did
pre-q35-pm support. QEMU starts up fine (with a warning) if
mixing PIIX PM and -M q35. Starting to reject things here
could mean we refuse to start existing configs in the wild.*/
if (def->pm.s3) {
const char *pm_object = "PIIX4_PM";
if (qemuDomainMachineIsQ35(def) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_ICH9_DISABLE_S3)) {
pm_object = "ICH9-LPC";
} else if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PIIX_DISABLE_S3)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("setting ACPI S3 not supported"));
return -1;
}
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.disable_s3=%d",
pm_object, def->pm.s3 == VIR_TRISTATE_BOOL_NO);
}
if (def->pm.s4) {
const char *pm_object = "PIIX4_PM";
if (qemuDomainMachineIsQ35(def) &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_ICH9_DISABLE_S4)) {
pm_object = "ICH9-LPC";
} else if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_PIIX_DISABLE_S4)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("setting ACPI S4 not supported"));
return -1;
}
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.disable_s4=%d",
pm_object, def->pm.s4 == VIR_TRISTATE_BOOL_NO);
}
return 0;
}
static int
qemuBuildBootCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
virBuffer boot_buf = VIR_BUFFER_INITIALIZER;
char *boot_order_str = NULL, *boot_opts_str = NULL;
/*
* We prefer using explicit bootindex=N parameters for predictable
* results even though domain XML doesn't use per device boot elements.
*/
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_BOOTINDEX)) {
char boot[VIR_DOMAIN_BOOT_LAST+1];
if (def->os.nBootDevs == 0) {
/* def->os.nBootDevs is guaranteed to be > 0 unless per-device boot
* configuration is used
*/
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("hypervisor lacks deviceboot feature"));
goto error;
}
for (i = 0; i < def->os.nBootDevs; i++) {
switch (def->os.bootDevs[i]) {
case VIR_DOMAIN_BOOT_CDROM:
boot[i] = 'd';
break;
case VIR_DOMAIN_BOOT_FLOPPY:
boot[i] = 'a';
break;
case VIR_DOMAIN_BOOT_DISK:
boot[i] = 'c';
break;
case VIR_DOMAIN_BOOT_NET:
boot[i] = 'n';
break;
default:
boot[i] = 'c';
break;
}
}
boot[def->os.nBootDevs] = '\0';
virBufferAsprintf(&boot_buf, "%s", boot);
if (virBufferCheckError(&boot_buf) < 0)
goto error;
boot_order_str = virBufferContentAndReset(&boot_buf);
}
if (def->os.bootmenu) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_BOOT_MENU)) {
if (def->os.bootmenu == VIR_TRISTATE_BOOL_YES)
virBufferAddLit(&boot_buf, "menu=on,");
else
virBufferAddLit(&boot_buf, "menu=off,");
} else {
/* We cannot emit an error when bootmenu is enabled but
* unsupported because of backward compatibility */
VIR_WARN("bootmenu is enabled but not "
"supported by this QEMU binary");
}
}
if (def->os.bios.rt_set) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_REBOOT_TIMEOUT)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("reboot timeout is not supported "
"by this QEMU binary"));
goto error;
}
virBufferAsprintf(&boot_buf,
"reboot-timeout=%d,",
def->os.bios.rt_delay);
}
if (def->os.bm_timeout_set) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SPLASH_TIMEOUT)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("splash timeout is not supported "
"by this QEMU binary"));
goto error;
}
virBufferAsprintf(&boot_buf, "splash-time=%u,", def->os.bm_timeout);
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_BOOT_STRICT))
virBufferAddLit(&boot_buf, "strict=on,");
virBufferTrim(&boot_buf, ",", -1);
if (virBufferCheckError(&boot_buf) < 0)
goto error;
boot_opts_str = virBufferContentAndReset(&boot_buf);
if (boot_order_str || boot_opts_str) {
virCommandAddArg(cmd, "-boot");
if (boot_order_str && boot_opts_str) {
virCommandAddArgFormat(cmd, "order=%s,%s",
boot_order_str, boot_opts_str);
} else if (boot_order_str) {
virCommandAddArg(cmd, boot_order_str);
} else if (boot_opts_str) {
virCommandAddArg(cmd, boot_opts_str);
}
}
VIR_FREE(boot_opts_str);
VIR_FREE(boot_order_str);
if (def->os.kernel)
virCommandAddArgList(cmd, "-kernel", def->os.kernel, NULL);
if (def->os.initrd)
virCommandAddArgList(cmd, "-initrd", def->os.initrd, NULL);
if (def->os.cmdline)
virCommandAddArgList(cmd, "-append", def->os.cmdline, NULL);
if (def->os.dtb) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DTB)) {
virCommandAddArgList(cmd, "-dtb", def->os.dtb, NULL);
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("dtb is not supported with this QEMU binary"));
goto error;
}
}
if (def->os.slic_table) {
virBuffer buf = VIR_BUFFER_INITIALIZER;
virCommandAddArg(cmd, "-acpitable");
virBufferAddLit(&buf, "sig=SLIC,file=");
virQEMUBuildBufferEscapeComma(&buf, def->os.slic_table);
virCommandAddArgBuffer(cmd, &buf);
}
return 0;
error:
VIR_FREE(boot_order_str);
VIR_FREE(boot_opts_str);
virBufferFreeAndReset(&boot_buf);
return -1;
}
static int
qemuBuildIOMMUCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
if (!def->iommu)
return 0;
switch (def->iommu->model) {
case VIR_DOMAIN_IOMMU_MODEL_INTEL:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_INTEL_IOMMU)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("IOMMU device: '%s' is not supported with "
"this QEMU binary"),
virDomainIOMMUModelTypeToString(def->iommu->model));
return -1;
}
if (!qemuDomainMachineIsQ35(def)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("IOMMU device: '%s' is only supported with "
"Q35 machines"),
virDomainIOMMUModelTypeToString(def->iommu->model));
return -1;
}
virCommandAddArgList(cmd, "-device", "intel-iommu", NULL);
case VIR_DOMAIN_IOMMU_MODEL_LAST:
break;
}
return 0;
}
static int
qemuBuildGlobalControllerCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->ncontrollers; i++) {
virDomainControllerDefPtr cont = def->controllers[i];
if (cont->type == VIR_DOMAIN_CONTROLLER_TYPE_PCI &&
cont->opts.pciopts.pcihole64) {
const char *hoststr = NULL;
bool cap = false;
bool machine = false;
switch (cont->model) {
case VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT:
hoststr = "i440FX-pcihost";
cap = virQEMUCapsGet(qemuCaps, QEMU_CAPS_I440FX_PCI_HOLE64_SIZE);
machine = qemuDomainMachineIsI440FX(def);
break;
case VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT:
hoststr = "q35-pcihost";
cap = virQEMUCapsGet(qemuCaps, QEMU_CAPS_Q35_PCI_HOLE64_SIZE);
machine = qemuDomainMachineIsQ35(def);
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("64-bit PCI hole setting is only for root"
" PCI controllers"));
return -1;
}
if (!machine) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Setting the 64-bit PCI hole size is not "
"supported for machine '%s'"), def->os.machine);
return -1;
}
if (!cap) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("64-bit PCI hole size setting is not supported "
"with this QEMU binary"));
return -1;
}
virCommandAddArg(cmd, "-global");
virCommandAddArgFormat(cmd, "%s.pci-hole64-size=%luK", hoststr,
cont->opts.pciopts.pcihole64size);
}
}
return 0;
}
static int
qemuBuildCpuModelArgStr(virQEMUDriverPtr driver,
const virDomainDef *def,
virBufferPtr buf,
virQEMUCapsPtr qemuCaps,
bool *hasHwVirt,
bool migrating)
{
int ret = -1;
size_t i;
virCPUDefPtr host = NULL;
virCPUDefPtr guest = NULL;
virCPUDefPtr cpu = NULL;
virCPUDefPtr featCpu = NULL;
size_t ncpus = 0;
char **cpus = NULL;
virCPUDataPtr data = NULL;
virCPUDataPtr hostData = NULL;
char *compare_msg = NULL;
virCPUCompareResult cmp;
const char *preferred;
virCapsPtr caps = NULL;
bool compareAgainstHost = ((def->virtType == VIR_DOMAIN_VIRT_KVM ||
def->cpu->mode != VIR_CPU_MODE_CUSTOM) &&
def->cpu->mode != VIR_CPU_MODE_HOST_PASSTHROUGH);
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
goto cleanup;
host = caps->host.cpu;
if (!host ||
!host->model ||
(ncpus = virQEMUCapsGetCPUDefinitions(qemuCaps, &cpus)) == 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("CPU specification not supported by hypervisor"));
goto cleanup;
}
if (!(cpu = virCPUDefCopy(def->cpu)))
goto cleanup;
if (cpu->mode == VIR_CPU_MODE_HOST_MODEL &&
!migrating &&
cpuUpdate(cpu, host) < 0)
goto cleanup;
/* For non-KVM, CPU features are emulated, so host compat doesn't matter */
if (compareAgainstHost) {
bool noTSX = false;
cmp = cpuGuestData(host, cpu, &data, &compare_msg);
switch (cmp) {
case VIR_CPU_COMPARE_INCOMPATIBLE:
if (cpuEncode(host->arch, host, NULL, &hostData,
NULL, NULL, NULL, NULL) == 0 &&
(!cpuHasFeature(hostData, "hle") ||
!cpuHasFeature(hostData, "rtm")) &&
(STREQ_NULLABLE(cpu->model, "Haswell") ||
STREQ_NULLABLE(cpu->model, "Broadwell")))
noTSX = true;
if (compare_msg) {
if (noTSX) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("guest and host CPU are not compatible: "
"%s; try using '%s-noTSX' CPU model"),
compare_msg, cpu->model);
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("guest and host CPU are not compatible: "
"%s"),
compare_msg);
}
} else {
if (noTSX) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("guest CPU is not compatible with host "
"CPU; try using '%s-noTSX' CPU model"),
cpu->model);
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("guest CPU is not compatible with host "
"CPU"));
}
}
/* fall through */
case VIR_CPU_COMPARE_ERROR:
goto cleanup;
default:
break;
}
}
/* Only 'svm' requires --enable-nesting. The nested
* 'vmx' patches now simply hook off the CPU features
*/
if ((def->os.arch == VIR_ARCH_X86_64 || def->os.arch == VIR_ARCH_I686) &&
compareAgainstHost) {
int hasSVM = cpuHasFeature(data, "svm");
if (hasSVM < 0)
goto cleanup;
*hasHwVirt = hasSVM > 0 ? true : false;
}
if ((cpu->mode == VIR_CPU_MODE_HOST_PASSTHROUGH) ||
((cpu->mode == VIR_CPU_MODE_HOST_MODEL) &&
ARCH_IS_PPC64(def->os.arch))) {
if (def->virtType != VIR_DOMAIN_VIRT_KVM) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("CPU mode '%s' is only supported with kvm"),
virCPUModeTypeToString(cpu->mode));
goto cleanup;
}
virBufferAddLit(buf, "host");
if (def->os.arch == VIR_ARCH_ARMV7L &&
host->arch == VIR_ARCH_AARCH64) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CPU_AARCH64_OFF)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("QEMU binary does not support CPU "
"host-passthrough for armv7l on "
"aarch64 host"));
goto cleanup;
}
virBufferAddLit(buf, ",aarch64=off");
}
if (ARCH_IS_PPC64(def->os.arch) &&
cpu->mode == VIR_CPU_MODE_HOST_MODEL &&
def->cpu->model != NULL) {
virBufferAsprintf(buf, ",compat=%s", def->cpu->model);
} else {
featCpu = cpu;
}
} else {
if (VIR_ALLOC(guest) < 0)
goto cleanup;
if (VIR_STRDUP(guest->vendor_id, cpu->vendor_id) < 0)
goto cleanup;
if (compareAgainstHost) {
guest->arch = host->arch;
if (cpu->match == VIR_CPU_MATCH_MINIMUM)
preferred = host->model;
else
preferred = cpu->model;
guest->type = VIR_CPU_TYPE_GUEST;
guest->fallback = cpu->fallback;
if (cpuDecode(guest, data,
(const char **)cpus, ncpus, preferred) < 0)
goto cleanup;
} else {
guest->arch = def->os.arch;
if (VIR_STRDUP(guest->model, cpu->model) < 0)
goto cleanup;
}
virBufferAdd(buf, guest->model, -1);
if (guest->vendor_id)
virBufferAsprintf(buf, ",vendor=%s", guest->vendor_id);
featCpu = guest;
}
if (featCpu) {
for (i = 0; i < featCpu->nfeatures; i++) {
char sign;
if (featCpu->features[i].policy == VIR_CPU_FEATURE_DISABLE)
sign = '-';
else
sign = '+';
virBufferAsprintf(buf, ",%c%s", sign, featCpu->features[i].name);
}
}
ret = 0;
cleanup:
virObjectUnref(caps);
VIR_FREE(compare_msg);
cpuDataFree(data);
cpuDataFree(hostData);
virCPUDefFree(guest);
virCPUDefFree(cpu);
return ret;
}
static int
qemuBuildCpuCommandLine(virCommandPtr cmd,
virQEMUDriverPtr driver,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
bool migrating)
{
virArch hostarch = virArchFromHost();
char *cpu = NULL;
bool hasHwVirt = false;
const char *default_model;
bool have_cpu = false;
int ret = -1;
virBuffer buf = VIR_BUFFER_INITIALIZER;
size_t i;
if (def->os.arch == VIR_ARCH_I686)
default_model = "qemu32";
else
default_model = "qemu64";
if (def->cpu &&
(def->cpu->mode != VIR_CPU_MODE_CUSTOM || def->cpu->model)) {
if (qemuBuildCpuModelArgStr(driver, def, &buf, qemuCaps,
&hasHwVirt, migrating) < 0)
goto cleanup;
have_cpu = true;
} else {
/*
* Need to force a 32-bit guest CPU type if
*
* 1. guest OS is i686
* 2. host OS is x86_64
* 3. emulator is qemu-kvm or kvm
*
* Or
*
* 1. guest OS is i686
* 2. emulator is qemu-system-x86_64
*/
if (def->os.arch == VIR_ARCH_I686 &&
((hostarch == VIR_ARCH_X86_64 &&
strstr(def->emulator, "kvm")) ||
strstr(def->emulator, "x86_64"))) {
virBufferAdd(&buf, default_model, -1);
have_cpu = true;
}
}
/* Handle paravirtual timers */
for (i = 0; i < def->clock.ntimers; i++) {
virDomainTimerDefPtr timer = def->clock.timers[i];
if (timer->present == -1)
continue;
if (timer->name == VIR_DOMAIN_TIMER_NAME_KVMCLOCK) {
virBufferAsprintf(&buf, "%s,%ckvmclock",
have_cpu ? "" : default_model,
timer->present ? '+' : '-');
have_cpu = true;
} else if (timer->name == VIR_DOMAIN_TIMER_NAME_HYPERVCLOCK &&
timer->present) {
virBufferAsprintf(&buf, "%s,hv_time",
have_cpu ? "" : default_model);
have_cpu = true;
}
}
if (def->apic_eoi) {
char sign;
if (def->apic_eoi == VIR_TRISTATE_SWITCH_ON)
sign = '+';
else
sign = '-';
virBufferAsprintf(&buf, "%s,%ckvm_pv_eoi",
have_cpu ? "" : default_model,
sign);
have_cpu = true;
}
if (def->features[VIR_DOMAIN_FEATURE_PVSPINLOCK]) {
char sign;
if (def->features[VIR_DOMAIN_FEATURE_PVSPINLOCK] ==
VIR_TRISTATE_SWITCH_ON)
sign = '+';
else
sign = '-';
virBufferAsprintf(&buf, "%s,%ckvm_pv_unhalt",
have_cpu ? "" : default_model,
sign);
have_cpu = true;
}
if (def->features[VIR_DOMAIN_FEATURE_HYPERV] == VIR_TRISTATE_SWITCH_ON) {
if (!have_cpu) {
virBufferAdd(&buf, default_model, -1);
have_cpu = true;
}
for (i = 0; i < VIR_DOMAIN_HYPERV_LAST; i++) {
switch ((virDomainHyperv) i) {
case VIR_DOMAIN_HYPERV_RELAXED:
case VIR_DOMAIN_HYPERV_VAPIC:
case VIR_DOMAIN_HYPERV_VPINDEX:
case VIR_DOMAIN_HYPERV_RUNTIME:
case VIR_DOMAIN_HYPERV_SYNIC:
case VIR_DOMAIN_HYPERV_STIMER:
case VIR_DOMAIN_HYPERV_RESET:
if (def->hyperv_features[i] == VIR_TRISTATE_SWITCH_ON)
virBufferAsprintf(&buf, ",hv_%s",
virDomainHypervTypeToString(i));
break;
case VIR_DOMAIN_HYPERV_SPINLOCKS:
if (def->hyperv_features[i] == VIR_TRISTATE_SWITCH_ON)
virBufferAsprintf(&buf, ",hv_spinlocks=0x%x",
def->hyperv_spinlocks);
break;
case VIR_DOMAIN_HYPERV_VENDOR_ID:
if (def->hyperv_features[i] == VIR_TRISTATE_SWITCH_ON)
virBufferAsprintf(&buf, ",hv_vendor_id=%s",
def->hyperv_vendor_id);
break;
/* coverity[dead_error_begin] */
case VIR_DOMAIN_HYPERV_LAST:
break;
}
}
}
for (i = 0; i < def->npanics; i++) {
if (def->panics[i]->model == VIR_DOMAIN_PANIC_MODEL_HYPERV) {
if (!have_cpu) {
virBufferAdd(&buf, default_model, -1);
have_cpu = true;
}
virBufferAddLit(&buf, ",hv_crash");
break;
}
}
if (def->features[VIR_DOMAIN_FEATURE_KVM] == VIR_TRISTATE_SWITCH_ON) {
if (!have_cpu) {
virBufferAdd(&buf, default_model, -1);
have_cpu = true;
}
for (i = 0; i < VIR_DOMAIN_KVM_LAST; i++) {
switch ((virDomainKVM) i) {
case VIR_DOMAIN_KVM_HIDDEN:
if (def->kvm_features[i] == VIR_TRISTATE_SWITCH_ON)
virBufferAddLit(&buf, ",kvm=off");
break;
/* coverity[dead_error_begin] */
case VIR_DOMAIN_KVM_LAST:
break;
}
}
}
if (def->features[VIR_DOMAIN_FEATURE_PMU]) {
virTristateSwitch pmu = def->features[VIR_DOMAIN_FEATURE_PMU];
if (!have_cpu)
virBufferAdd(&buf, default_model, -1);
virBufferAsprintf(&buf, ",pmu=%s",
virTristateSwitchTypeToString(pmu));
have_cpu = true;
}
if (virBufferCheckError(&buf) < 0)
goto cleanup;
cpu = virBufferContentAndReset(&buf);
if (cpu) {
virCommandAddArgList(cmd, "-cpu", cpu, NULL);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NESTING) && hasHwVirt)
virCommandAddArg(cmd, "-enable-nesting");
}
ret = 0;
cleanup:
VIR_FREE(cpu);
virBufferFreeAndReset(&buf);
return ret;
}
static int
qemuBuildObsoleteAccelArg(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
bool disableKVM = false;
bool enableKVM = false;
switch (def->virtType) {
case VIR_DOMAIN_VIRT_QEMU:
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM))
disableKVM = true;
break;
case VIR_DOMAIN_VIRT_KQEMU:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("the QEMU binary does not support kqemu"));
break;
case VIR_DOMAIN_VIRT_KVM:
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_ENABLE_KVM)) {
enableKVM = true;
} else if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("the QEMU binary does not support kvm"));
return -1;
}
break;
case VIR_DOMAIN_VIRT_XEN:
/* XXX better check for xenner */
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("the QEMU binary does not support %s"),
virDomainVirtTypeToString(def->virtType));
return -1;
}
if (disableKVM)
virCommandAddArg(cmd, "-no-kvm");
if (enableKVM)
virCommandAddArg(cmd, "-enable-kvm");
return 0;
}
static bool
qemuAppendKeyWrapMachineParm(virBuffer *buf, virQEMUCapsPtr qemuCaps,
int flag, const char *pname, int pstate)
{
if (pstate != VIR_TRISTATE_SWITCH_ABSENT) {
if (!virQEMUCapsGet(qemuCaps, flag)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("%s is not available with this QEMU binary"), pname);
return false;
}
virBufferAsprintf(buf, ",%s=%s", pname,
virTristateSwitchTypeToString(pstate));
}
return true;
}
static bool
qemuAppendKeyWrapMachineParms(virBuffer *buf, virQEMUCapsPtr qemuCaps,
const virDomainKeyWrapDef *keywrap)
{
if (!qemuAppendKeyWrapMachineParm(buf, qemuCaps, QEMU_CAPS_AES_KEY_WRAP,
"aes-key-wrap", keywrap->aes))
return false;
if (!qemuAppendKeyWrapMachineParm(buf, qemuCaps, QEMU_CAPS_DEA_KEY_WRAP,
"dea-key-wrap", keywrap->dea))
return false;
return true;
}
static int
qemuBuildNameCommandLine(virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
virCommandAddArg(cmd, "-name");
/* The 'guest' option let's us handle a name with '=' embedded in it */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NAME_GUEST))
virBufferAddLit(&buf, "guest=");
virQEMUBuildBufferEscapeComma(&buf, def->name);
if (cfg->setProcessName &&
virQEMUCapsGet(qemuCaps, QEMU_CAPS_NAME_PROCESS))
virBufferAsprintf(&buf, ",process=qemu:%s", def->name);
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NAME_DEBUG_THREADS))
virBufferAddLit(&buf, ",debug-threads=on");
virCommandAddArgBuffer(cmd, &buf);
return 0;
}
static int
qemuBuildMachineCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
bool obsoleteAccel = false;
/* This should *never* be NULL, since we always provide
* a machine in the capabilities data for QEMU. So this
* check is just here as a safety in case the unexpected
* happens */
if (!def->os.machine)
return 0;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_OPT)) {
/* if no parameter to the machine type is needed, we still use
* '-M' to keep the most of the compatibility with older versions.
*/
virCommandAddArgList(cmd, "-M", def->os.machine, NULL);
if (def->mem.dump_core) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("dump-guest-core is not available "
"with this QEMU binary"));
return -1;
}
if (def->mem.nosharepages) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("disable shared memory is not available "
"with this QEMU binary"));
return -1;
}
obsoleteAccel = true;
if (def->keywrap) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("key wrap support is not available "
"with this QEMU binary"));
return -1;
}
} else {
virBuffer buf = VIR_BUFFER_INITIALIZER;
virTristateSwitch vmport = def->features[VIR_DOMAIN_FEATURE_VMPORT];
virCommandAddArg(cmd, "-machine");
virBufferAdd(&buf, def->os.machine, -1);
if (def->virtType == VIR_DOMAIN_VIRT_QEMU)
virBufferAddLit(&buf, ",accel=tcg");
else if (def->virtType == VIR_DOMAIN_VIRT_KVM)
virBufferAddLit(&buf, ",accel=kvm");
else
obsoleteAccel = true;
/* To avoid the collision of creating USB controllers when calling
* machine->init in QEMU, it needs to set usb=off
*/
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_USB_OPT))
virBufferAddLit(&buf, ",usb=off");
if (vmport) {
if (!virQEMUCapsSupportsVmport(qemuCaps, def)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("vmport is not available "
"with this QEMU binary"));
virBufferFreeAndReset(&buf);
return -1;
}
virBufferAsprintf(&buf, ",vmport=%s",
virTristateSwitchTypeToString(vmport));
}
if (def->mem.dump_core) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DUMP_GUEST_CORE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("dump-guest-core is not available "
"with this QEMU binary"));
virBufferFreeAndReset(&buf);
return -1;
}
virBufferAsprintf(&buf, ",dump-guest-core=%s",
virTristateSwitchTypeToString(def->mem.dump_core));
}
if (def->mem.nosharepages) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_MEM_MERGE)) {
virBufferAddLit(&buf, ",mem-merge=off");
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("disable shared memory is not available "
"with this QEMU binary"));
virBufferFreeAndReset(&buf);
return -1;
}
}
if (def->keywrap &&
!qemuAppendKeyWrapMachineParms(&buf, qemuCaps, def->keywrap)) {
virBufferFreeAndReset(&buf);
return -1;
}
if (def->features[VIR_DOMAIN_FEATURE_GIC] == VIR_TRISTATE_SWITCH_ON) {
if (def->gic_version != VIR_GIC_VERSION_NONE) {
if (!qemuDomainMachineIsVirt(def)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("gic-version option is available "
"only for ARM virt machine"));
virBufferFreeAndReset(&buf);
return -1;
}
/* The default GIC version should not be specified on the
* QEMU commandline for backwards compatibility reasons */
if (def->gic_version != VIR_GIC_VERSION_DEFAULT) {
if (!virQEMUCapsGet(qemuCaps,
QEMU_CAPS_MACH_VIRT_GIC_VERSION)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("gic-version option is not available "
"with this QEMU binary"));
virBufferFreeAndReset(&buf);
return -1;
}
virBufferAsprintf(&buf, ",gic-version=%s",
virGICVersionTypeToString(def->gic_version));
}
}
}
virCommandAddArgBuffer(cmd, &buf);
}
if (obsoleteAccel &&
qemuBuildObsoleteAccelArg(cmd, def, qemuCaps) < 0)
return -1;
return 0;
}
static int
qemuBuildSmpCommandLine(virCommandPtr cmd,
const virDomainDef *def)
{
char *smp;
virBuffer buf = VIR_BUFFER_INITIALIZER;
virCommandAddArg(cmd, "-smp");
virBufferAsprintf(&buf, "%u", virDomainDefGetVcpus(def));
if (virDomainDefHasVcpusOffline(def))
virBufferAsprintf(&buf, ",maxcpus=%u", virDomainDefGetVcpusMax(def));
/* sockets, cores, and threads are either all zero
* or all non-zero, thus checking one of them is enough */
if (def->cpu && def->cpu->sockets) {
virBufferAsprintf(&buf, ",sockets=%u", def->cpu->sockets);
virBufferAsprintf(&buf, ",cores=%u", def->cpu->cores);
virBufferAsprintf(&buf, ",threads=%u", def->cpu->threads);
} else {
virBufferAsprintf(&buf, ",sockets=%u", virDomainDefGetVcpusMax(def));
virBufferAsprintf(&buf, ",cores=%u", 1);
virBufferAsprintf(&buf, ",threads=%u", 1);
}
if (virBufferCheckError(&buf) < 0)
return -1;
smp = virBufferContentAndReset(&buf);
virCommandAddArg(cmd, smp);
VIR_FREE(smp);
return 0;
}
static int
qemuBuildMemPathStr(virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps,
virCommandPtr cmd)
{
const long system_page_size = virGetSystemPageSizeKB();
char *mem_path = NULL;
size_t i = 0;
/*
* No-op if hugepages were not requested.
*/
if (!def->mem.nhugepages)
return 0;
/* There is one special case: if user specified "huge"
* pages of regular system pages size.
* And there is nothing to do in this case.
*/
if (def->mem.hugepages[0].size == system_page_size)
return 0;
if (!cfg->nhugetlbfs) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("hugetlbfs filesystem is not mounted "
"or disabled by administrator config"));
return -1;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MEM_PATH)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("hugepage backing not supported by '%s'"),
def->emulator);
return -1;
}
if (!def->mem.hugepages[0].size) {
if (!(mem_path = qemuGetDefaultHugepath(cfg->hugetlbfs,
cfg->nhugetlbfs)))
return -1;
} else {
for (i = 0; i < cfg->nhugetlbfs; i++) {
if (cfg->hugetlbfs[i].size == def->mem.hugepages[0].size)
break;
}
if (i == cfg->nhugetlbfs) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unable to find any usable hugetlbfs "
"mount for %llu KiB"),
def->mem.hugepages[0].size);
return -1;
}
if (!(mem_path = qemuGetHugepagePath(&cfg->hugetlbfs[i])))
return -1;
}
virCommandAddArgList(cmd, "-mem-prealloc", "-mem-path", mem_path, NULL);
VIR_FREE(mem_path);
return 0;
}
static int
qemuBuildMemCommandLine(virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
if (qemuDomainDefValidateMemoryHotplug(def, qemuCaps, NULL) < 0)
return -1;
virCommandAddArg(cmd, "-m");
if (virDomainDefHasMemoryHotplug(def)) {
/* Use the 'k' suffix to let qemu handle the units */
virCommandAddArgFormat(cmd, "size=%lluk,slots=%u,maxmem=%lluk",
virDomainDefGetMemoryInitial(def),
def->mem.memory_slots,
def->mem.max_memory);
} else {
virCommandAddArgFormat(cmd, "%llu",
virDomainDefGetMemoryInitial(def) / 1024);
}
/*
* Add '-mem-path' (and '-mem-prealloc') parameter here only if
* there is no numa node specified.
*/
if (!virDomainNumaGetNodeCount(def->numa) &&
qemuBuildMemPathStr(cfg, def, qemuCaps, cmd) < 0)
return -1;
if (def->mem.locked && !virQEMUCapsGet(qemuCaps, QEMU_CAPS_REALTIME_MLOCK)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("memory locking not supported by QEMU binary"));
return -1;
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_REALTIME_MLOCK)) {
virCommandAddArg(cmd, "-realtime");
virCommandAddArgFormat(cmd, "mlock=%s",
def->mem.locked ? "on" : "off");
}
return 0;
}
static int
qemuBuildIOThreadCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
if (def->niothreadids == 0)
return 0;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_IOTHREAD)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("IOThreads not supported for this QEMU"));
return -1;
}
/* Create iothread objects using the defined iothreadids list
* and the defined id and name from the list. These may be used
* by a disk definition which will associate to an iothread by
* supplying a value of an id from the list
*/
for (i = 0; i < def->niothreadids; i++) {
virCommandAddArg(cmd, "-object");
virCommandAddArgFormat(cmd, "iothread,id=iothread%u",
def->iothreadids[i]->iothread_id);
}
return 0;
}
static int
qemuBuildNumaArgStr(virQEMUDriverConfigPtr cfg,
virDomainDefPtr def,
virCommandPtr cmd,
virQEMUCapsPtr qemuCaps,
virBitmapPtr auto_nodeset)
{
size_t i;
virBuffer buf = VIR_BUFFER_INITIALIZER;
char *cpumask = NULL, *tmpmask = NULL, *next = NULL;
char **nodeBackends = NULL;
bool needBackend = false;
int rc;
int ret = -1;
size_t ncells = virDomainNumaGetNodeCount(def->numa);
const long system_page_size = virGetSystemPageSizeKB();
if (virDomainNumatuneHasPerNodeBinding(def->numa) &&
!(virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_RAM) ||
virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_FILE))) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Per-node memory binding is not supported "
"with this QEMU"));
goto cleanup;
}
if (def->mem.nhugepages &&
def->mem.hugepages[0].size != system_page_size &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_FILE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("huge pages per NUMA node are not "
"supported with this QEMU"));
goto cleanup;
}
if (!virDomainNumatuneNodesetIsAvailable(def->numa, auto_nodeset))
goto cleanup;
for (i = 0; i < def->mem.nhugepages; i++) {
ssize_t next_bit, pos = 0;
if (!def->mem.hugepages[i].nodemask) {
/* This is the master hugepage to use. Skip it as it has no
* nodemask anyway. */
continue;
}
if (ncells) {
/* Fortunately, we allow only guest NUMA nodes to be continuous
* starting from zero. */
pos = ncells - 1;
}
next_bit = virBitmapNextSetBit(def->mem.hugepages[i].nodemask, pos);
if (next_bit >= 0) {
virReportError(VIR_ERR_XML_DETAIL,
_("hugepages: node %zd not found"),
next_bit);
goto cleanup;
}
}
if (VIR_ALLOC_N(nodeBackends, ncells) < 0)
goto cleanup;
/* using of -numa memdev= cannot be combined with -numa mem=, thus we
* need to check which approach to use */
for (i = 0; i < ncells; i++) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_RAM) ||
virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_MEMORY_FILE)) {
if ((rc = qemuBuildMemoryCellBackendStr(def, qemuCaps, cfg, i,
auto_nodeset,
&nodeBackends[i])) < 0)
goto cleanup;
if (rc == 0)
needBackend = true;
} else {
if (virDomainNumaGetNodeMemoryAccessMode(def->numa, i)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Shared memory mapping is not supported "
"with this QEMU"));
goto cleanup;
}
}
}
if (!needBackend &&
qemuBuildMemPathStr(cfg, def, qemuCaps, cmd) < 0)
goto cleanup;
for (i = 0; i < ncells; i++) {
VIR_FREE(cpumask);
if (!(cpumask = virBitmapFormat(virDomainNumaGetNodeCpumask(def->numa, i))))
goto cleanup;
if (strchr(cpumask, ',') &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_NUMA)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("disjoint NUMA cpu ranges are not supported "
"with this QEMU"));
goto cleanup;
}
if (needBackend)
virCommandAddArgList(cmd, "-object", nodeBackends[i], NULL);
virCommandAddArg(cmd, "-numa");
virBufferAsprintf(&buf, "node,nodeid=%zu", i);
for (tmpmask = cpumask; tmpmask; tmpmask = next) {
if ((next = strchr(tmpmask, ',')))
*(next++) = '\0';
virBufferAddLit(&buf, ",cpus=");
virBufferAdd(&buf, tmpmask, -1);
}
if (needBackend)
virBufferAsprintf(&buf, ",memdev=ram-node%zu", i);
else
virBufferAsprintf(&buf, ",mem=%llu",
virDomainNumaGetNodeMemorySize(def->numa, i) / 1024);
virCommandAddArgBuffer(cmd, &buf);
}
ret = 0;
cleanup:
VIR_FREE(cpumask);
if (nodeBackends) {
for (i = 0; i < ncells; i++)
VIR_FREE(nodeBackends[i]);
VIR_FREE(nodeBackends);
}
virBufferFreeAndReset(&buf);
return ret;
}
static int
qemuBuildMemoryDeviceCommandLine(virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps,
virBitmapPtr nodeset)
{
size_t i;
/* memory hotplug requires NUMA to be enabled - we already checked
* that memory devices are present only when NUMA is */
for (i = 0; i < def->nmems; i++) {
char *backStr;
char *dimmStr;
if (!(backStr = qemuBuildMemoryDimmBackendStr(def->mems[i], def,
qemuCaps, cfg, nodeset)))
return -1;
if (!(dimmStr = qemuBuildMemoryDeviceStr(def->mems[i]))) {
VIR_FREE(backStr);
return -1;
}
virCommandAddArgList(cmd, "-object", backStr, "-device", dimmStr, NULL);
VIR_FREE(backStr);
VIR_FREE(dimmStr);
}
return 0;
}
static int
qemuBuildGraphicsVNCCommandLine(virQEMUDriverConfigPtr cfg,
virCommandPtr cmd,
virQEMUCapsPtr qemuCaps,
virDomainGraphicsDefPtr graphics)
{
virBuffer opt = VIR_BUFFER_INITIALIZER;
virDomainGraphicsListenDefPtr glisten = NULL;
bool escapeAddr;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VNC)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("vnc graphics are not supported with this QEMU"));
goto error;
}
if (!(glisten = virDomainGraphicsGetListen(graphics, 0))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing listen element"));
goto error;
}
switch (glisten->type) {
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_SOCKET:
virBufferAddLit(&opt, "unix:");
virQEMUBuildBufferEscapeComma(&opt, glisten->socket);
break;
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_ADDRESS:
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NETWORK:
if (!graphics->data.vnc.autoport &&
(graphics->data.vnc.port < 5900 ||
graphics->data.vnc.port > 65535)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("vnc port must be in range [5900,65535]"));
goto error;
}
if (glisten->address) {
escapeAddr = strchr(glisten->address, ':') != NULL;
if (escapeAddr)
virBufferAsprintf(&opt, "[%s]", glisten->address);
else
virBufferAdd(&opt, glisten->address, -1);
}
virBufferAsprintf(&opt, ":%d",
graphics->data.vnc.port - 5900);
if (graphics->data.vnc.websocket) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VNC_WEBSOCKET)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("VNC WebSockets are not supported "
"with this QEMU binary"));
goto error;
}
virBufferAsprintf(&opt, ",websocket=%d", graphics->data.vnc.websocket);
}
break;
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NONE:
virBufferAddLit(&opt, "none");
break;
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_LAST:
break;
}
if (graphics->data.vnc.sharePolicy) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VNC_SHARE_POLICY)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("vnc display sharing policy is not "
"supported with this QEMU"));
goto error;
}
virBufferAsprintf(&opt, ",share=%s",
virDomainGraphicsVNCSharePolicyTypeToString(
graphics->data.vnc.sharePolicy));
}
if (graphics->data.vnc.auth.passwd || cfg->vncPassword)
virBufferAddLit(&opt, ",password");
if (cfg->vncTLS) {
virBufferAddLit(&opt, ",tls");
if (cfg->vncTLSx509verify)
virBufferAsprintf(&opt, ",x509verify=%s", cfg->vncTLSx509certdir);
else
virBufferAsprintf(&opt, ",x509=%s", cfg->vncTLSx509certdir);
}
if (cfg->vncSASL) {
virBufferAddLit(&opt, ",sasl");
if (cfg->vncSASLdir)
virCommandAddEnvPair(cmd, "SASL_CONF_PATH", cfg->vncSASLdir);
/* TODO: Support ACLs later */
}
virCommandAddArg(cmd, "-vnc");
virCommandAddArgBuffer(cmd, &opt);
if (graphics->data.vnc.keymap)
virCommandAddArgList(cmd, "-k", graphics->data.vnc.keymap, NULL);
/* Unless user requested it, set the audio backend to none, to
* prevent it opening the host OS audio devices, since that causes
* security issues and might not work when using VNC.
*/
if (cfg->vncAllowHostAudio)
virCommandAddEnvPassBlockSUID(cmd, "QEMU_AUDIO_DRV", NULL);
else
virCommandAddEnvString(cmd, "QEMU_AUDIO_DRV=none");
return 0;
error:
virBufferFreeAndReset(&opt);
return -1;
}
static int
qemuBuildGraphicsSPICECommandLine(virQEMUDriverConfigPtr cfg,
virCommandPtr cmd,
virQEMUCapsPtr qemuCaps,
virDomainGraphicsDefPtr graphics)
{
virBuffer opt = VIR_BUFFER_INITIALIZER;
virDomainGraphicsListenDefPtr glisten = NULL;
int port = graphics->data.spice.port;
int tlsPort = graphics->data.spice.tlsPort;
size_t i;
bool hasSecure = false;
bool hasInsecure = false;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SPICE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("spice graphics are not supported with this QEMU"));
goto error;
}
if (!(glisten = virDomainGraphicsGetListen(graphics, 0))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing listen element"));
goto error;
}
switch (glisten->type) {
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_SOCKET:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SPICE_UNIX)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("unix socket for spice graphics are not supported "
"with this QEMU"));
goto error;
}
virBufferAsprintf(&opt, "unix,addr=%s,", glisten->socket);
hasInsecure = true;
break;
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_ADDRESS:
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NETWORK:
if (port > 0) {
virBufferAsprintf(&opt, "port=%u,", port);
hasInsecure = true;
}
if (tlsPort > 0) {
if (!cfg->spiceTLS) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("spice TLS port set in XML configuration, "
"but TLS is disabled in qemu.conf"));
goto error;
}
virBufferAsprintf(&opt, "tls-port=%u,", tlsPort);
hasSecure = true;
}
if (port > 0 || tlsPort > 0) {
if (glisten->address)
virBufferAsprintf(&opt, "addr=%s,", glisten->address);
}
break;
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NONE:
/* QEMU requires either port or tls-port to be specified if there is no
* other argument. Use a dummy port=0. */
virBufferAddLit(&opt, "port=0,");
hasInsecure = true;
break;
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_LAST:
break;
}
if (cfg->spiceSASL) {
virBufferAddLit(&opt, "sasl,");
if (cfg->spiceSASLdir)
virCommandAddEnvPair(cmd, "SASL_CONF_PATH",
cfg->spiceSASLdir);
/* TODO: Support ACLs later */
}
if (graphics->data.spice.mousemode) {
switch (graphics->data.spice.mousemode) {
case VIR_DOMAIN_GRAPHICS_SPICE_MOUSE_MODE_SERVER:
virBufferAddLit(&opt, "agent-mouse=off,");
break;
case VIR_DOMAIN_GRAPHICS_SPICE_MOUSE_MODE_CLIENT:
virBufferAddLit(&opt, "agent-mouse=on,");
break;
default:
break;
}
}
/* In the password case we set it via monitor command, to avoid
* making it visible on CLI, so there's no use of password=XXX
* in this bit of the code */
if (!graphics->data.spice.auth.passwd &&
!cfg->spicePassword)
virBufferAddLit(&opt, "disable-ticketing,");
if (hasSecure)
virBufferAsprintf(&opt, "x509-dir=%s,", cfg->spiceTLSx509certdir);
switch (graphics->data.spice.defaultMode) {
case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_SECURE:
if (!hasSecure) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("spice defaultMode secure requested in XML "
"configuration, but TLS connection is not "
"available"));
goto error;
}
virBufferAddLit(&opt, "tls-channel=default,");
break;
case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_INSECURE:
if (!hasInsecure) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("spice defaultMode insecure requested in XML "
"configuration, but plaintext connection is not "
"available"));
goto error;
}
virBufferAddLit(&opt, "plaintext-channel=default,");
break;
case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_ANY:
case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_LAST:
/* nothing */
break;
}
for (i = 0; i < VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_LAST; i++) {
switch (graphics->data.spice.channels[i]) {
case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_SECURE:
if (!hasSecure) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("spice secure channels set in XML "
"configuration, but TLS connection is not "
"available"));
goto error;
}
virBufferAsprintf(&opt, "tls-channel=%s,",
virDomainGraphicsSpiceChannelNameTypeToString(i));
break;
case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_INSECURE:
if (!hasInsecure) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("spice insecure channels set in XML "
"configuration, but plaintext connection "
"is not available"));
goto error;
}
virBufferAsprintf(&opt, "plaintext-channel=%s,",
virDomainGraphicsSpiceChannelNameTypeToString(i));
break;
case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_ANY:
break;
}
}
if (graphics->data.spice.image)
virBufferAsprintf(&opt, "image-compression=%s,",
virDomainGraphicsSpiceImageCompressionTypeToString(graphics->data.spice.image));
if (graphics->data.spice.jpeg)
virBufferAsprintf(&opt, "jpeg-wan-compression=%s,",
virDomainGraphicsSpiceJpegCompressionTypeToString(graphics->data.spice.jpeg));
if (graphics->data.spice.zlib)
virBufferAsprintf(&opt, "zlib-glz-wan-compression=%s,",
virDomainGraphicsSpiceZlibCompressionTypeToString(graphics->data.spice.zlib));
if (graphics->data.spice.playback)
virBufferAsprintf(&opt, "playback-compression=%s,",
virTristateSwitchTypeToString(graphics->data.spice.playback));
if (graphics->data.spice.streaming)
virBufferAsprintf(&opt, "streaming-video=%s,",
virDomainGraphicsSpiceStreamingModeTypeToString(graphics->data.spice.streaming));
if (graphics->data.spice.copypaste == VIR_TRISTATE_BOOL_NO)
virBufferAddLit(&opt, "disable-copy-paste,");
if (graphics->data.spice.filetransfer == VIR_TRISTATE_BOOL_NO) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SPICE_FILE_XFER_DISABLE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU can't disable file transfers through spice"));
goto error;
} else {
virBufferAddLit(&opt, "disable-agent-file-xfer,");
}
}
if (graphics->data.spice.gl == VIR_TRISTATE_BOOL_YES) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SPICE_GL)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This QEMU doesn't support spice OpenGL"));
goto error;
}
/* spice.gl is a TristateBool, but qemu expects on/off: use
* TristateSwitch helper */
virBufferAsprintf(&opt, "gl=%s,",
virTristateSwitchTypeToString(graphics->data.spice.gl));
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_SEAMLESS_MIGRATION)) {
/* If qemu supports seamless migration turn it
* unconditionally on. If migration destination
* doesn't support it, it fallbacks to previous
* migration algorithm silently. */
virBufferAddLit(&opt, "seamless-migration=on,");
}
virBufferTrim(&opt, ",", -1);
virCommandAddArg(cmd, "-spice");
virCommandAddArgBuffer(cmd, &opt);
if (graphics->data.spice.keymap)
virCommandAddArgList(cmd, "-k",
graphics->data.spice.keymap, NULL);
/* SPICE includes native support for tunnelling audio, so we
* set the audio backend to point at SPICE's own driver
*/
virCommandAddEnvString(cmd, "QEMU_AUDIO_DRV=spice");
return 0;
error:
virBufferFreeAndReset(&opt);
return -1;
}
static int
qemuBuildGraphicsCommandLine(virQEMUDriverConfigPtr cfg,
virCommandPtr cmd,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps,
virDomainGraphicsDefPtr graphics)
{
switch (graphics->type) {
case VIR_DOMAIN_GRAPHICS_TYPE_SDL:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SDL)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("sdl not supported by '%s'"), def->emulator);
return -1;
}
if (graphics->data.sdl.xauth)
virCommandAddEnvPair(cmd, "XAUTHORITY", graphics->data.sdl.xauth);
if (graphics->data.sdl.display)
virCommandAddEnvPair(cmd, "DISPLAY", graphics->data.sdl.display);
if (graphics->data.sdl.fullscreen)
virCommandAddArg(cmd, "-full-screen");
/* If using SDL for video, then we should just let it
* use QEMU's host audio drivers, possibly SDL too
* User can set these two before starting libvirtd
*/
virCommandAddEnvPassBlockSUID(cmd, "QEMU_AUDIO_DRV", NULL);
virCommandAddEnvPassBlockSUID(cmd, "SDL_AUDIODRIVER", NULL);
/* New QEMU has this flag to let us explicitly ask for
* SDL graphics. This is better than relying on the
* default, since the default changes :-( */
virCommandAddArg(cmd, "-sdl");
break;
case VIR_DOMAIN_GRAPHICS_TYPE_VNC:
return qemuBuildGraphicsVNCCommandLine(cfg, cmd, qemuCaps, graphics);
case VIR_DOMAIN_GRAPHICS_TYPE_SPICE:
return qemuBuildGraphicsSPICECommandLine(cfg, cmd, qemuCaps, graphics);
case VIR_DOMAIN_GRAPHICS_TYPE_RDP:
case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP:
case VIR_DOMAIN_GRAPHICS_TYPE_LAST:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported graphics type '%s'"),
virDomainGraphicsTypeToString(graphics->type));
return -1;
}
return 0;
}
static int
qemuBuildVhostuserCommandLine(virCommandPtr cmd,
virDomainDefPtr def,
virDomainNetDefPtr net,
virQEMUCapsPtr qemuCaps,
unsigned int bootindex)
{
virBuffer chardev_buf = VIR_BUFFER_INITIALIZER;
virBuffer netdev_buf = VIR_BUFFER_INITIALIZER;
unsigned int queues = net->driver.virtio.queues;
char *nic = NULL;
if (!qemuDomainSupportsNetdev(def, qemuCaps, net)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("Netdev support unavailable"));
goto error;
}
switch ((virDomainChrType) net->data.vhostuser->type) {
case VIR_DOMAIN_CHR_TYPE_UNIX:
virBufferAsprintf(&chardev_buf, "socket,id=char%s,path=%s%s",
net->info.alias, net->data.vhostuser->data.nix.path,
net->data.vhostuser->data.nix.listen ? ",server" : "");
break;
case VIR_DOMAIN_CHR_TYPE_NULL:
case VIR_DOMAIN_CHR_TYPE_VC:
case VIR_DOMAIN_CHR_TYPE_PTY:
case VIR_DOMAIN_CHR_TYPE_DEV:
case VIR_DOMAIN_CHR_TYPE_FILE:
case VIR_DOMAIN_CHR_TYPE_PIPE:
case VIR_DOMAIN_CHR_TYPE_STDIO:
case VIR_DOMAIN_CHR_TYPE_UDP:
case VIR_DOMAIN_CHR_TYPE_TCP:
case VIR_DOMAIN_CHR_TYPE_SPICEVMC:
case VIR_DOMAIN_CHR_TYPE_SPICEPORT:
case VIR_DOMAIN_CHR_TYPE_NMDM:
case VIR_DOMAIN_CHR_TYPE_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("vhost-user type '%s' not supported"),
virDomainChrTypeToString(net->data.vhostuser->type));
goto error;
}
virBufferAsprintf(&netdev_buf, "type=vhost-user,id=host%s,chardev=char%s",
net->info.alias, net->info.alias);
if (queues > 1) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VHOSTUSER_MULTIQUEUE)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("multi-queue is not supported for vhost-user "
"with this QEMU binary"));
goto error;
}
virBufferAsprintf(&netdev_buf, ",queues=%u", queues);
}
virCommandAddArg(cmd, "-chardev");
virCommandAddArgBuffer(cmd, &chardev_buf);
virCommandAddArg(cmd, "-netdev");
virCommandAddArgBuffer(cmd, &netdev_buf);
if (!(nic = qemuBuildNicDevStr(def, net, -1, bootindex,
queues, qemuCaps))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("Error generating NIC -device string"));
goto error;
}
virCommandAddArgList(cmd, "-device", nic, NULL);
VIR_FREE(nic);
return 0;
error:
virBufferFreeAndReset(&chardev_buf);
virBufferFreeAndReset(&netdev_buf);
VIR_FREE(nic);
return -1;
}
static int
qemuBuildInterfaceCommandLine(virCommandPtr cmd,
virQEMUDriverPtr driver,
virDomainDefPtr def,
virDomainNetDefPtr net,
virQEMUCapsPtr qemuCaps,
int vlan,
unsigned int bootindex,
virNetDevVPortProfileOp vmop,
bool standalone,
size_t *nnicindexes,
int **nicindexes)
{
int ret = -1;
char *nic = NULL, *host = NULL;
int *tapfd = NULL;
size_t tapfdSize = 0;
int *vhostfd = NULL;
size_t vhostfdSize = 0;
char **tapfdName = NULL;
char **vhostfdName = NULL;
int actualType = virDomainNetGetActualType(net);
virQEMUDriverConfigPtr cfg = NULL;
virNetDevBandwidthPtr actualBandwidth;
size_t i;
if (!bootindex)
bootindex = net->info.bootIndex;
if (actualType == VIR_DOMAIN_NET_TYPE_VHOSTUSER)
return qemuBuildVhostuserCommandLine(cmd, def, net, qemuCaps, bootindex);
if (actualType == VIR_DOMAIN_NET_TYPE_HOSTDEV) {
/* NET_TYPE_HOSTDEV devices are really hostdev devices, so
* their commandlines are constructed with other hostdevs.
*/
return 0;
}
/* Currently nothing besides TAP devices supports multiqueue. */
if (net->driver.virtio.queues > 0 &&
!(actualType == VIR_DOMAIN_NET_TYPE_NETWORK ||
actualType == VIR_DOMAIN_NET_TYPE_BRIDGE ||
actualType == VIR_DOMAIN_NET_TYPE_DIRECT ||
actualType == VIR_DOMAIN_NET_TYPE_ETHERNET)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Multiqueue network is not supported for: %s"),
virDomainNetTypeToString(actualType));
return -1;
}
/* and only TAP devices support nwfilter rules */
if (net->filter &&
!(actualType == VIR_DOMAIN_NET_TYPE_NETWORK ||
actualType == VIR_DOMAIN_NET_TYPE_BRIDGE ||
actualType == VIR_DOMAIN_NET_TYPE_ETHERNET)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("filterref is not supported for "
"network interfaces of type %s"),
virDomainNetTypeToString(actualType));
return -1;
}
if (net->backend.tap &&
!(actualType == VIR_DOMAIN_NET_TYPE_NETWORK ||
actualType == VIR_DOMAIN_NET_TYPE_BRIDGE ||
actualType == VIR_DOMAIN_NET_TYPE_ETHERNET)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Custom tap device path is not supported for: %s"),
virDomainNetTypeToString(actualType));
return -1;
}
cfg = virQEMUDriverGetConfig(driver);
if (actualType == VIR_DOMAIN_NET_TYPE_NETWORK ||
actualType == VIR_DOMAIN_NET_TYPE_BRIDGE) {
tapfdSize = net->driver.virtio.queues;
if (!tapfdSize)
tapfdSize = 1;
if (VIR_ALLOC_N(tapfd, tapfdSize) < 0 ||
VIR_ALLOC_N(tapfdName, tapfdSize) < 0)
goto cleanup;
memset(tapfd, -1, tapfdSize * sizeof(tapfd[0]));
if (qemuInterfaceBridgeConnect(def, driver, net,
tapfd, &tapfdSize) < 0)
goto cleanup;
} else if (actualType == VIR_DOMAIN_NET_TYPE_DIRECT) {
tapfdSize = net->driver.virtio.queues;
if (!tapfdSize)
tapfdSize = 1;
if (VIR_ALLOC_N(tapfd, tapfdSize) < 0 ||
VIR_ALLOC_N(tapfdName, tapfdSize) < 0)
goto cleanup;
memset(tapfd, -1, tapfdSize * sizeof(tapfd[0]));
if (qemuInterfaceDirectConnect(def, driver, net,
tapfd, tapfdSize, vmop) < 0)
goto cleanup;
} else if (actualType == VIR_DOMAIN_NET_TYPE_ETHERNET) {
tapfdSize = net->driver.virtio.queues;
if (!tapfdSize)
tapfdSize = 1;
if (VIR_ALLOC_N(tapfd, tapfdSize) < 0 ||
VIR_ALLOC_N(tapfdName, tapfdSize) < 0)
goto cleanup;
memset(tapfd, -1, tapfdSize * sizeof(tapfd[0]));
if (qemuInterfaceEthernetConnect(def, driver, net,
tapfd, tapfdSize) < 0)
goto cleanup;
}
/* For types whose implementations use a netdev on the host, add
* an entry to nicindexes for passing on to systemd.
*/
switch ((virDomainNetType)actualType) {
case VIR_DOMAIN_NET_TYPE_ETHERNET:
case VIR_DOMAIN_NET_TYPE_NETWORK:
case VIR_DOMAIN_NET_TYPE_BRIDGE:
case VIR_DOMAIN_NET_TYPE_DIRECT:
{
int nicindex;
/* network and bridge use a tap device, and direct uses a
* macvtap device
*/
if (virQEMUDriverIsPrivileged(driver) && nicindexes && nnicindexes &&
net->ifname) {
if (virNetDevGetIndex(net->ifname, &nicindex) < 0 ||
VIR_APPEND_ELEMENT(*nicindexes, *nnicindexes, nicindex) < 0)
goto cleanup;
}
break;
}
case VIR_DOMAIN_NET_TYPE_USER:
case VIR_DOMAIN_NET_TYPE_VHOSTUSER:
case VIR_DOMAIN_NET_TYPE_SERVER:
case VIR_DOMAIN_NET_TYPE_CLIENT:
case VIR_DOMAIN_NET_TYPE_MCAST:
case VIR_DOMAIN_NET_TYPE_UDP:
case VIR_DOMAIN_NET_TYPE_INTERNAL:
case VIR_DOMAIN_NET_TYPE_HOSTDEV:
case VIR_DOMAIN_NET_TYPE_LAST:
/* These types don't use a network device on the host, but
* instead use some other type of connection to the emulated
* device in the qemu process.
*
* (Note that hostdev can't be considered as "using a network
* device", because by the time it is being used, it has been
* detached from the hostside network driver so it doesn't show
* up in the list of interfaces on the host - it's just some
* PCI device.)
*/
break;
}
/* Set bandwidth or warn if requested and not supported. */
actualBandwidth = virDomainNetGetActualBandwidth(net);
if (actualBandwidth) {
if (virNetDevSupportBandwidth(actualType)) {
if (virNetDevBandwidthSet(net->ifname, actualBandwidth, false) < 0)
goto cleanup;
} else {
VIR_WARN("setting bandwidth on interfaces of "
"type '%s' is not implemented yet",
virDomainNetTypeToString(actualType));
}
}
if ((actualType == VIR_DOMAIN_NET_TYPE_NETWORK ||
actualType == VIR_DOMAIN_NET_TYPE_BRIDGE ||
actualType == VIR_DOMAIN_NET_TYPE_ETHERNET ||
actualType == VIR_DOMAIN_NET_TYPE_DIRECT) &&
!standalone) {
/* Attempt to use vhost-net mode for these types of
network device */
vhostfdSize = net->driver.virtio.queues;
if (!vhostfdSize)
vhostfdSize = 1;
if (VIR_ALLOC_N(vhostfd, vhostfdSize) < 0 ||
VIR_ALLOC_N(vhostfdName, vhostfdSize))
goto cleanup;
memset(vhostfd, -1, vhostfdSize * sizeof(vhostfd[0]));
if (qemuInterfaceOpenVhostNet(def, net, qemuCaps,
vhostfd, &vhostfdSize) < 0)
goto cleanup;
}
for (i = 0; i < tapfdSize; i++) {
if (virSecurityManagerSetTapFDLabel(driver->securityManager,
def, tapfd[i]) < 0)
goto cleanup;
virCommandPassFD(cmd, tapfd[i],
VIR_COMMAND_PASS_FD_CLOSE_PARENT);
if (virAsprintf(&tapfdName[i], "%d", tapfd[i]) < 0)
goto cleanup;
}
for (i = 0; i < vhostfdSize; i++) {
virCommandPassFD(cmd, vhostfd[i],
VIR_COMMAND_PASS_FD_CLOSE_PARENT);
if (virAsprintf(&vhostfdName[i], "%d", vhostfd[i]) < 0)
goto cleanup;
}
/* Possible combinations:
*
* 1. Old way: -net nic,model=e1000,vlan=1 -net tap,vlan=1
* 2. Semi-new: -device e1000,vlan=1 -net tap,vlan=1
* 3. Best way: -netdev type=tap,id=netdev1 -device e1000,id=netdev1
*
* NB, no support for -netdev without use of -device
*/
if (qemuDomainSupportsNetdev(def, qemuCaps, net)) {
if (!(host = qemuBuildHostNetStr(net, driver,
',', vlan,
tapfdName, tapfdSize,
vhostfdName, vhostfdSize)))
goto cleanup;
virCommandAddArgList(cmd, "-netdev", host, NULL);
}
if (qemuDomainSupportsNicdev(def, net)) {
if (!(nic = qemuBuildNicDevStr(def, net, vlan, bootindex,
vhostfdSize, qemuCaps)))
goto cleanup;
virCommandAddArgList(cmd, "-device", nic, NULL);
} else {
if (!(nic = qemuBuildNicStr(net, "nic,", vlan)))
goto cleanup;
virCommandAddArgList(cmd, "-net", nic, NULL);
}
if (!qemuDomainSupportsNetdev(def, qemuCaps, net)) {
if (!(host = qemuBuildHostNetStr(net, driver,
',', vlan,
tapfdName, tapfdSize,
vhostfdName, vhostfdSize)))
goto cleanup;
virCommandAddArgList(cmd, "-net", host, NULL);
}
ret = 0;
cleanup:
if (ret < 0) {
virErrorPtr saved_err = virSaveLastError();
virDomainConfNWFilterTeardown(net);
virSetError(saved_err);
virFreeError(saved_err);
}
for (i = 0; tapfd && i < tapfdSize && tapfd[i] >= 0; i++) {
if (ret < 0)
VIR_FORCE_CLOSE(tapfd[i]);
if (tapfdName)
VIR_FREE(tapfdName[i]);
}
for (i = 0; vhostfd && i < vhostfdSize && vhostfd[i] >= 0; i++) {
if (ret < 0)
VIR_FORCE_CLOSE(vhostfd[i]);
if (vhostfdName)
VIR_FREE(vhostfdName[i]);
}
VIR_FREE(tapfd);
VIR_FREE(vhostfd);
VIR_FREE(nic);
VIR_FREE(host);
VIR_FREE(tapfdName);
VIR_FREE(vhostfdName);
virObjectUnref(cfg);
return ret;
}
/* NOTE: Not using const virDomainDef here since eventually a call is made
* into virSecurityManagerSetTapFDLabel which calls it's driver
* API domainSetSecurityTapFDLabel that doesn't use the const format.
*/
static int
qemuBuildNetCommandLine(virCommandPtr cmd,
virQEMUDriverPtr driver,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps,
virNetDevVPortProfileOp vmop,
bool standalone,
size_t *nnicindexes,
int **nicindexes,
unsigned int *bootHostdevNet)
{
size_t i;
int last_good_net = -1;
virErrorPtr originalError = NULL;
if (def->nnets) {
unsigned int bootNet = 0;
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_BOOTINDEX)) {
/* convert <boot dev='network'/> to bootindex since we didn't emit
* -boot n
*/
for (i = 0; i < def->os.nBootDevs; i++) {
if (def->os.bootDevs[i] == VIR_DOMAIN_BOOT_NET) {
bootNet = i + 1;
break;
}
}
}
for (i = 0; i < def->nnets; i++) {
virDomainNetDefPtr net = def->nets[i];
int vlan;
/* VLANs are not used with -netdev, so don't record them */
if (qemuDomainSupportsNetdev(def, qemuCaps, net))
vlan = -1;
else
vlan = i;
if (qemuBuildInterfaceCommandLine(cmd, driver, def, net,
qemuCaps, vlan, bootNet, vmop,
standalone, nnicindexes,
nicindexes) < 0)
goto error;
last_good_net = i;
/* if this interface is a type='hostdev' interface and we
* haven't yet added a "bootindex" parameter to an
* emulated network device, save the bootindex - hostdev
* interface commandlines will be built later on when we
* cycle through all the hostdevs, and we'll use it then.
*/
if (virDomainNetGetActualType(net) == VIR_DOMAIN_NET_TYPE_HOSTDEV &&
*bootHostdevNet == 0) {
*bootHostdevNet = bootNet;
}
bootNet = 0;
}
}
return 0;
error:
/* free up any resources in the network driver
* but don't overwrite the original error */
originalError = virSaveLastError();
for (i = 0; last_good_net != -1 && i <= last_good_net; i++)
virDomainConfNWFilterTeardown(def->nets[i]);
virSetError(originalError);
virFreeError(originalError);
return -1;
}
static int
qemuBuildSmartcardCommandLine(virLogManagerPtr logManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
virDomainSmartcardDefPtr smartcard;
char *devstr;
virBuffer opt = VIR_BUFFER_INITIALIZER;
const char *database;
if (!def->nsmartcards)
return 0;
smartcard = def->smartcards[0];
/* -device usb-ccid was already emitted along with other
* controllers. For now, qemu handles only one smartcard. */
if (def->nsmartcards > 1 ||
smartcard->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCID ||
smartcard->info.addr.ccid.controller != 0 ||
smartcard->info.addr.ccid.slot != 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU binary lacks multiple smartcard "
"support"));
virBufferFreeAndReset(&opt);
return -1;
}
switch (smartcard->type) {
case VIR_DOMAIN_SMARTCARD_TYPE_HOST:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV) ||
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CCID_EMULATED)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU binary lacks smartcard host "
"mode support"));
return -1;
}
virBufferAddLit(&opt, "ccid-card-emulated,backend=nss-emulated");
break;
case VIR_DOMAIN_SMARTCARD_TYPE_HOST_CERTIFICATES:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV) ||
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CCID_EMULATED)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU binary lacks smartcard host "
"mode support"));
return -1;
}
virBufferAddLit(&opt, "ccid-card-emulated,backend=certificates");
for (i = 0; i < VIR_DOMAIN_SMARTCARD_NUM_CERTIFICATES; i++) {
if (strchr(smartcard->data.cert.file[i], ',')) {
virBufferFreeAndReset(&opt);
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("invalid certificate name: %s"),
smartcard->data.cert.file[i]);
return -1;
}
virBufferAsprintf(&opt, ",cert%zu=%s", i + 1,
smartcard->data.cert.file[i]);
}
if (smartcard->data.cert.database) {
if (strchr(smartcard->data.cert.database, ',')) {
virBufferFreeAndReset(&opt);
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("invalid database name: %s"),
smartcard->data.cert.database);
return -1;
}
database = smartcard->data.cert.database;
} else {
database = VIR_DOMAIN_SMARTCARD_DEFAULT_DATABASE;
}
virBufferAsprintf(&opt, ",db=%s", database);
break;
case VIR_DOMAIN_SMARTCARD_TYPE_PASSTHROUGH:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV) ||
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CCID_PASSTHRU)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("this QEMU binary lacks smartcard "
"passthrough mode support"));
return -1;
}
if (!(devstr = qemuBuildChrChardevStr(logManager, cmd, cfg, def,
&smartcard->data.passthru,
smartcard->info.alias,
qemuCaps))) {
virBufferFreeAndReset(&opt);
return -1;
}
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
virBufferAsprintf(&opt, "ccid-card-passthru,chardev=char%s",
smartcard->info.alias);
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unexpected smartcard type %d"),
smartcard->type);
virBufferFreeAndReset(&opt);
return -1;
}
virCommandAddArg(cmd, "-device");
virBufferAsprintf(&opt, ",id=%s,bus=ccid0.0", smartcard->info.alias);
virCommandAddArgBuffer(cmd, &opt);
return 0;
}
char *
qemuBuildShmemDevStr(virDomainDefPtr def,
virDomainShmemDefPtr shmem,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_IVSHMEM)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("ivshmem device is not supported "
"with this QEMU binary"));
goto error;
}
virBufferAddLit(&buf, "ivshmem");
if (shmem->size) {
/*
* Thanks to our parsing code, we have a guarantee that the
* size is power of two and is at least a mebibyte in size.
* But because it may change in the future, the checks are
* doubled in here.
*/
if (shmem->size & (shmem->size - 1)) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("shmem size must be a power of two"));
goto error;
}
if (shmem->size < 1024 * 1024) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("shmem size must be at least 1 MiB (1024 KiB)"));
goto error;
}
virBufferAsprintf(&buf, ",size=%llum", shmem->size >> 20);
}
if (!shmem->server.enabled) {
virBufferAsprintf(&buf, ",shm=%s,id=%s", shmem->name, shmem->info.alias);
} else {
virBufferAsprintf(&buf, ",chardev=char%s,id=%s", shmem->info.alias, shmem->info.alias);
if (shmem->msi.enabled) {
virBufferAddLit(&buf, ",msi=on");
if (shmem->msi.vectors)
virBufferAsprintf(&buf, ",vectors=%u", shmem->msi.vectors);
if (shmem->msi.ioeventfd)
virBufferAsprintf(&buf, ",ioeventfd=%s",
virTristateSwitchTypeToString(shmem->msi.ioeventfd));
}
}
if (shmem->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("only 'pci' addresses are supported for the "
"shared memory device"));
goto error;
}
if (qemuBuildDeviceAddressStr(&buf, def, &shmem->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static char *
qemuBuildShmemBackendStr(virLogManagerPtr logManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
virDomainDefPtr def,
virDomainShmemDefPtr shmem,
virQEMUCapsPtr qemuCaps)
{
char *devstr = NULL;
if (!shmem->server.chr.data.nix.path &&
virAsprintf(&shmem->server.chr.data.nix.path,
"/var/lib/libvirt/shmem-%s-sock",
shmem->name) < 0)
return NULL;
devstr = qemuBuildChrChardevStr(logManager, cmd, cfg, def,
&shmem->server.chr,
shmem->info.alias, qemuCaps);
return devstr;
}
static int
qemuBuildShmemCommandLine(virLogManagerPtr logManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
virDomainDefPtr def,
virDomainShmemDefPtr shmem,
virQEMUCapsPtr qemuCaps)
{
char *devstr = NULL;
if (!(devstr = qemuBuildShmemDevStr(def, shmem, qemuCaps)))
return -1;
virCommandAddArgList(cmd, "-device", devstr, NULL);
VIR_FREE(devstr);
if (shmem->server.enabled) {
if (!(devstr = qemuBuildShmemBackendStr(logManager, cmd, cfg, def,
shmem, qemuCaps)))
return -1;
virCommandAddArgList(cmd, "-chardev", devstr, NULL);
VIR_FREE(devstr);
}
return 0;
}
static int
qemuBuildChrDeviceCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virDomainChrDefPtr chr,
virQEMUCapsPtr qemuCaps)
{
char *devstr = NULL;
if (qemuBuildChrDeviceStr(&devstr, def, chr, qemuCaps) < 0)
return -1;
virCommandAddArgList(cmd, "-device", devstr, NULL);
VIR_FREE(devstr);
return 0;
}
static int
qemuBuildSerialCommandLine(virLogManagerPtr logManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
bool havespice = false;
if (def->nserials) {
for (i = 0; i < def->ngraphics && !havespice; i++) {
if (def->graphics[i]->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE)
havespice = true;
}
}
for (i = 0; i < def->nserials; i++) {
virDomainChrDefPtr serial = def->serials[i];
char *devstr;
if (serial->source.type == VIR_DOMAIN_CHR_TYPE_SPICEPORT && !havespice)
continue;
/* Use -chardev with -device if they are available */
if (virQEMUCapsSupportsChardev(def, qemuCaps, serial)) {
if (!(devstr = qemuBuildChrChardevStr(logManager, cmd, cfg, def,
&serial->source,
serial->info.alias,
qemuCaps)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
if (qemuBuildChrDeviceCommandLine(cmd, def, serial, qemuCaps) < 0)
return -1;
} else {
virCommandAddArg(cmd, "-serial");
if (!(devstr = qemuBuildChrArgStr(&serial->source, NULL)))
return -1;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
}
}
return 0;
}
static int
qemuBuildParallelsCommandLine(virLogManagerPtr logManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->nparallels; i++) {
virDomainChrDefPtr parallel = def->parallels[i];
char *devstr;
/* Use -chardev with -device if they are available */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV)) {
if (!(devstr = qemuBuildChrChardevStr(logManager, cmd, cfg, def,
&parallel->source,
parallel->info.alias,
qemuCaps)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
if (qemuBuildChrDeviceCommandLine(cmd, def, parallel,
qemuCaps) < 0)
return -1;
} else {
virCommandAddArg(cmd, "-parallel");
if (!(devstr = qemuBuildChrArgStr(&parallel->source, NULL)))
return -1;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
}
}
return 0;
}
static int
qemuBuildChannelsCommandLine(virLogManagerPtr logManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->nchannels; i++) {
virDomainChrDefPtr channel = def->channels[i];
char *devstr;
switch (channel->targetType) {
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_GUESTFWD:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_CHARDEV)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("guestfwd requires QEMU to support -chardev & -device"));
return -1;
}
if (!(devstr = qemuBuildChrChardevStr(logManager, cmd, cfg, def,
&channel->source,
channel->info.alias,
qemuCaps)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
if (qemuBuildChrDeviceStr(&devstr, def, channel, qemuCaps) < 0)
return -1;
virCommandAddArgList(cmd, "-netdev", devstr, NULL);
VIR_FREE(devstr);
break;
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO:
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_SPICEVMC) &&
channel->source.type == VIR_DOMAIN_CHR_TYPE_SPICEVMC) {
/* spicevmc was originally introduced via a -device
* with a backend internal to qemu; although we prefer
* the newer -chardev interface. */
;
} else {
if (!(devstr = qemuBuildChrChardevStr(logManager, cmd, cfg, def,
&channel->source,
channel->info.alias,
qemuCaps)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
}
if (qemuBuildChrDeviceCommandLine(cmd, def, channel, qemuCaps) < 0)
return -1;
break;
}
}
return 0;
}
static int
qemuBuildConsoleCommandLine(virLogManagerPtr logManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
/* Explicit console devices */
for (i = 0; i < def->nconsoles; i++) {
virDomainChrDefPtr console = def->consoles[i];
char *devstr;
switch (console->targetType) {
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLP:
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLPLM:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SCLP_S390)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("sclp console requires QEMU to support s390-sclp"));
return -1;
}
if (!(devstr = qemuBuildChrChardevStr(logManager, cmd, cfg, def,
&console->source,
console->info.alias,
qemuCaps)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
if (qemuBuildChrDeviceCommandLine(cmd, def, console, qemuCaps) < 0)
return -1;
break;
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_VIRTIO:
if (!(devstr = qemuBuildChrChardevStr(logManager, cmd, cfg, def,
&console->source,
console->info.alias,
qemuCaps)))
return -1;
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
if (qemuBuildChrDeviceCommandLine(cmd, def, console, qemuCaps) < 0)
return -1;
break;
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL:
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported console target type %s"),
NULLSTR(virDomainChrConsoleTargetTypeToString(console->targetType)));
return -1;
}
}
return 0;
}
char *
qemuBuildRedirdevDevStr(const virDomainDef *def,
virDomainRedirdevDefPtr dev,
virQEMUCapsPtr qemuCaps)
{
size_t i;
virBuffer buf = VIR_BUFFER_INITIALIZER;
virDomainRedirFilterDefPtr redirfilter = def->redirfilter;
if (dev->bus != VIR_DOMAIN_REDIRDEV_BUS_USB) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Redirection bus %s is not supported by QEMU"),
virDomainRedirdevBusTypeToString(dev->bus));
goto error;
}
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_USB_REDIR)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("USB redirection is not supported "
"by this version of QEMU"));
goto error;
}
virBufferAsprintf(&buf, "usb-redir,chardev=char%s,id=%s",
dev->info.alias, dev->info.alias);
if (redirfilter && redirfilter->nusbdevs) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_USB_REDIR_FILTER)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("USB redirection filter is not "
"supported by this version of QEMU"));
goto error;
}
virBufferAddLit(&buf, ",filter=");
for (i = 0; i < redirfilter->nusbdevs; i++) {
virDomainRedirFilterUSBDevDefPtr usbdev = redirfilter->usbdevs[i];
if (usbdev->usbClass >= 0)
virBufferAsprintf(&buf, "0x%02X:", usbdev->usbClass);
else
virBufferAddLit(&buf, "-1:");
if (usbdev->vendor >= 0)
virBufferAsprintf(&buf, "0x%04X:", usbdev->vendor);
else
virBufferAddLit(&buf, "-1:");
if (usbdev->product >= 0)
virBufferAsprintf(&buf, "0x%04X:", usbdev->product);
else
virBufferAddLit(&buf, "-1:");
if (usbdev->version >= 0)
virBufferAsprintf(&buf, "0x%04X:", usbdev->version);
else
virBufferAddLit(&buf, "-1:");
virBufferAsprintf(&buf, "%u", usbdev->allow);
if (i < redirfilter->nusbdevs -1)
virBufferAddLit(&buf, "|");
}
}
if (dev->info.bootIndex) {
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_USB_REDIR_BOOTINDEX)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("USB redirection booting is not "
"supported by this version of QEMU"));
goto error;
}
virBufferAsprintf(&buf, ",bootindex=%u", dev->info.bootIndex);
}
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildRedirdevCommandLine(virLogManagerPtr logManager,
virCommandPtr cmd,
virQEMUDriverConfigPtr cfg,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->nredirdevs; i++) {
virDomainRedirdevDefPtr redirdev = def->redirdevs[i];
char *devstr;
if (!(devstr = qemuBuildChrChardevStr(logManager, cmd, cfg, def,
&redirdev->source.chr,
redirdev->info.alias,
qemuCaps))) {
return -1;
}
virCommandAddArg(cmd, "-chardev");
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
virCommandAddArg(cmd, "-device");
if (!(devstr = qemuBuildRedirdevDevStr(def, redirdev, qemuCaps)))
return -1;
virCommandAddArg(cmd, devstr);
VIR_FREE(devstr);
}
return 0;
}
static int
qemuBuildDomainLoaderCommandLine(virCommandPtr cmd,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps)
{
int ret = -1;
virDomainLoaderDefPtr loader = def->os.loader;
virBuffer buf = VIR_BUFFER_INITIALIZER;
int unit = 0;
if (!loader)
return 0;
switch ((virDomainLoader) loader->type) {
case VIR_DOMAIN_LOADER_TYPE_ROM:
virCommandAddArg(cmd, "-bios");
virCommandAddArg(cmd, loader->path);
break;
case VIR_DOMAIN_LOADER_TYPE_PFLASH:
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NO_ACPI) &&
def->features[VIR_DOMAIN_FEATURE_ACPI] != VIR_TRISTATE_SWITCH_ON) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("ACPI must be enabled in order to use UEFI"));
goto cleanup;
}
virBufferAsprintf(&buf,
"file=%s,if=pflash,format=raw,unit=%d",
loader->path, unit);
unit++;
if (loader->readonly) {
virBufferAsprintf(&buf, ",readonly=%s",
virTristateSwitchTypeToString(loader->readonly));
}
virCommandAddArg(cmd, "-drive");
virCommandAddArgBuffer(cmd, &buf);
if (loader->nvram) {
virBufferFreeAndReset(&buf);
virBufferAsprintf(&buf,
"file=%s,if=pflash,format=raw,unit=%d",
loader->nvram, unit);
virCommandAddArg(cmd, "-drive");
virCommandAddArgBuffer(cmd, &buf);
}
break;
case VIR_DOMAIN_LOADER_TYPE_LAST:
/* nada */
break;
}
ret = 0;
cleanup:
virBufferFreeAndReset(&buf);
return ret;
}
static char *
qemuBuildTPMDevStr(const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
const virDomainTPMDef *tpm = def->tpm;
const char *model = virDomainTPMModelTypeToString(tpm->model);
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_TPM_TIS)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("The QEMU executable %s does not support TPM "
"model %s"),
def->emulator, model);
goto error;
}
virBufferAsprintf(&buf, "%s,tpmdev=tpm-%s,id=%s",
model, tpm->info.alias, tpm->info.alias);
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
error:
virBufferFreeAndReset(&buf);
return NULL;
}
static char *
qemuBuildTPMBackendStr(const virDomainDef *def,
virCommandPtr cmd,
virQEMUCapsPtr qemuCaps,
int *tpmfd,
int *cancelfd)
{
const virDomainTPMDef *tpm = def->tpm;
virBuffer buf = VIR_BUFFER_INITIALIZER;
const char *type = virDomainTPMBackendTypeToString(tpm->type);
char *cancel_path = NULL, *devset = NULL;
const char *tpmdev;
*tpmfd = -1;
*cancelfd = -1;
virBufferAsprintf(&buf, "%s,id=tpm-%s", type, tpm->info.alias);
switch (tpm->type) {
case VIR_DOMAIN_TPM_TYPE_PASSTHROUGH:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_TPM_PASSTHROUGH))
goto no_support;
tpmdev = tpm->data.passthrough.source.data.file.path;
if (!(cancel_path = virTPMCreateCancelPath(tpmdev)))
goto error;
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_ADD_FD)) {
*tpmfd = open(tpmdev, O_RDWR);
if (*tpmfd < 0) {
virReportSystemError(errno, _("Could not open TPM device %s"),
tpmdev);
goto error;
}
virCommandPassFD(cmd, *tpmfd,
VIR_COMMAND_PASS_FD_CLOSE_PARENT);
devset = qemuVirCommandGetDevSet(cmd, *tpmfd);
if (devset == NULL)
goto error;
*cancelfd = open(cancel_path, O_WRONLY);
if (*cancelfd < 0) {
virReportSystemError(errno,
_("Could not open TPM device's cancel "
"path %s"), cancel_path);
goto error;
}
VIR_FREE(cancel_path);
virCommandPassFD(cmd, *cancelfd,
VIR_COMMAND_PASS_FD_CLOSE_PARENT);
cancel_path = qemuVirCommandGetDevSet(cmd, *cancelfd);
if (cancel_path == NULL)
goto error;
}
virBufferAddLit(&buf, ",path=");
virQEMUBuildBufferEscapeComma(&buf, devset ? devset : tpmdev);
virBufferAddLit(&buf, ",cancel-path=");
virQEMUBuildBufferEscapeComma(&buf, cancel_path);
VIR_FREE(devset);
VIR_FREE(cancel_path);
break;
case VIR_DOMAIN_TPM_TYPE_LAST:
goto error;
}
if (virBufferCheckError(&buf) < 0)
goto error;
return virBufferContentAndReset(&buf);
no_support:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("The QEMU executable %s does not support TPM "
"backend type %s"),
def->emulator, type);
error:
VIR_FREE(devset);
VIR_FREE(cancel_path);
virBufferFreeAndReset(&buf);
return NULL;
}
static int
qemuBuildTPMCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
char *optstr;
int tpmfd = -1;
int cancelfd = -1;
char *fdset;
if (!def->tpm)
return 0;
if (!(optstr = qemuBuildTPMBackendStr(def, cmd, qemuCaps,
&tpmfd, &cancelfd)))
return -1;
virCommandAddArgList(cmd, "-tpmdev", optstr, NULL);
VIR_FREE(optstr);
if (tpmfd >= 0) {
fdset = qemuVirCommandGetFDSet(cmd, tpmfd);
if (!fdset)
return -1;
virCommandAddArgList(cmd, "-add-fd", fdset, NULL);
VIR_FREE(fdset);
}
if (cancelfd >= 0) {
fdset = qemuVirCommandGetFDSet(cmd, cancelfd);
if (!fdset)
return -1;
virCommandAddArgList(cmd, "-add-fd", fdset, NULL);
VIR_FREE(fdset);
}
if (!(optstr = qemuBuildTPMDevStr(def, qemuCaps)))
return -1;
virCommandAddArgList(cmd, "-device", optstr, NULL);
VIR_FREE(optstr);
return 0;
}
static int
qemuBuildPanicCommandLine(virCommandPtr cmd,
const virDomainDef *def,
virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < def->npanics; i++) {
switch ((virDomainPanicModel) def->panics[i]->model) {
case VIR_DOMAIN_PANIC_MODEL_S390:
/* For s390 guests, the hardware provides the same
* functionality as the pvpanic device. The address
* cannot be configured by the user */
if (!ARCH_IS_S390(def->os.arch)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("only S390 guests support "
"panic device of model 's390'"));
return -1;
}
if (def->panics[i]->info.type !=
VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("setting the panic device address is not "
"supported for model 's390'"));
return -1;
}
break;
case VIR_DOMAIN_PANIC_MODEL_HYPERV:
/* Panic with model 'hyperv' is not a device, it should
* be configured in cpu commandline. The address
* cannot be configured by the user */
if (!ARCH_IS_X86(def->os.arch)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("only i686 and x86_64 guests support "
"panic device of model 'hyperv'"));
return -1;
}
if (def->panics[i]->info.type !=
VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("setting the panic device address is not "
"supported for model 'hyperv'"));
return -1;
}
break;
case VIR_DOMAIN_PANIC_MODEL_PSERIES:
/* For pSeries guests, the firmware provides the same
* functionality as the pvpanic device. The address
* cannot be configured by the user */
if (!qemuDomainMachineIsPSeries(def)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("only pSeries guests support panic device "
"of model 'pseries'"));
return -1;
}
if (def->panics[i]->info.type !=
VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("setting the panic device address is not "
"supported for model 'pseries'"));
return -1;
}
break;
case VIR_DOMAIN_PANIC_MODEL_ISA:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_PANIC)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("the QEMU binary does not support the "
"ISA panic device"));
return -1;
}
switch (def->panics[i]->info.type) {
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_ISA:
virCommandAddArg(cmd, "-device");
virCommandAddArgFormat(cmd, "pvpanic,ioport=%d",
def->panics[i]->info.addr.isa.iobase);
break;
case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE:
virCommandAddArgList(cmd, "-device", "pvpanic", NULL);
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("panic is supported only "
"with ISA address type"));
return -1;
}
/* default model value was changed before in post parse */
case VIR_DOMAIN_PANIC_MODEL_DEFAULT:
case VIR_DOMAIN_PANIC_MODEL_LAST:
break;
}
}
return 0;
}
/**
* qemuBuildCommandLineValidate:
*
* Prior to taking the plunge and building a long command line only
* to find some configuration option isn't valid, let's do a couple
* of checks and fail early.
*
* Returns 0 on success, returns -1 and messages what the issue is.
*/
static int
qemuBuildCommandLineValidate(virQEMUDriverPtr driver,
const virDomainDef *def)
{
size_t i;
int sdl = 0;
int vnc = 0;
int spice = 0;
if (!virQEMUDriverIsPrivileged(driver)) {
/* If we have no cgroups then we can have no tunings that
* require them */
if (virMemoryLimitIsSet(def->mem.hard_limit) ||
virMemoryLimitIsSet(def->mem.soft_limit) ||
virMemoryLimitIsSet(def->mem.swap_hard_limit)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Memory tuning is not available in session mode"));
return -1;
}
if (def->blkio.weight) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Block I/O tuning is not available in session mode"));
return -1;
}
if (def->cputune.sharesSpecified || def->cputune.period ||
def->cputune.quota || def->cputune.global_period ||
def->cputune.global_quota || def->cputune.emulator_period ||
def->cputune.emulator_quota) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("CPU tuning is not available in session mode"));
return -1;
}
}
for (i = 0; i < def->ngraphics; ++i) {
switch (def->graphics[i]->type) {
case VIR_DOMAIN_GRAPHICS_TYPE_SDL:
++sdl;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_VNC:
++vnc;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_SPICE:
++spice;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_RDP:
case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP:
case VIR_DOMAIN_GRAPHICS_TYPE_LAST:
break;
}
}
if (sdl > 1 || vnc > 1 || spice > 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("only 1 graphics device of each type "
"(sdl, vnc, spice) is supported"));
return -1;
}
if (def->virtType == VIR_DOMAIN_VIRT_XEN ||
def->os.type == VIR_DOMAIN_OSTYPE_XEN ||
def->os.type == VIR_DOMAIN_OSTYPE_LINUX) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("qemu emulator '%s' does not support xen"),
def->emulator);
return -1;
}
for (i = 0; i < def->ndisks; i++) {
virDomainDiskDefPtr disk = def->disks[i];
if (disk->src->driverName != NULL &&
STRNEQ(disk->src->driverName, "qemu")) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported driver name '%s' for disk '%s'"),
disk->src->driverName, disk->src->path);
return -1;
}
}
return 0;
}
/*
* Constructs a argv suitable for launching qemu with config defined
* for a given virtual machine.
*/
virCommandPtr
qemuBuildCommandLine(virQEMUDriverPtr driver,
virLogManagerPtr logManager,
virDomainDefPtr def,
virDomainChrSourceDefPtr monitor_chr,
bool monitor_json,
virQEMUCapsPtr qemuCaps,
const char *migrateURI,
virDomainSnapshotObjPtr snapshot,
virNetDevVPortProfileOp vmop,
bool standalone,
bool enableFips,
virBitmapPtr nodeset,
size_t *nnicindexes,
int **nicindexes,
const char *domainLibDir)
{
size_t i;
char uuid[VIR_UUID_STRING_BUFLEN];
virCommandPtr cmd = NULL;
virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
unsigned int bootHostdevNet = 0;
VIR_DEBUG("driver=%p def=%p mon=%p json=%d "
"qemuCaps=%p migrateURI=%s snapshot=%p vmop=%d",
driver, def, monitor_chr, monitor_json,
qemuCaps, migrateURI, snapshot, vmop);
if (qemuBuildCommandLineValidate(driver, def) < 0)
goto error;
/*
* do not use boot=on for drives when not using KVM since this
* is not supported at all in upstream QEmu.
*/
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM) &&
(def->virtType == VIR_DOMAIN_VIRT_QEMU))
virQEMUCapsClear(qemuCaps, QEMU_CAPS_DRIVE_BOOT);
cmd = virCommandNew(def->emulator);
virCommandAddEnvPassCommon(cmd);
if (qemuBuildNameCommandLine(cmd, cfg, def, qemuCaps) < 0)
goto error;
if (!standalone)
virCommandAddArg(cmd, "-S"); /* freeze CPU */
if (qemuBuildMasterKeyCommandLine(cmd, qemuCaps, domainLibDir) < 0)
goto error;
if (enableFips)
virCommandAddArg(cmd, "-enable-fips");
if (qemuBuildMachineCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildCpuCommandLine(cmd, driver, def, qemuCaps, !!migrateURI) < 0)
goto error;
if (qemuBuildDomainLoaderCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (!migrateURI && !snapshot && qemuDomainAlignMemorySizes(def) < 0)
goto error;
if (qemuBuildMemCommandLine(cmd, cfg, def, qemuCaps) < 0)
goto error;
if (qemuBuildSmpCommandLine(cmd, def) < 0)
goto error;
if (qemuBuildIOThreadCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (virDomainNumaGetNodeCount(def->numa) &&
qemuBuildNumaArgStr(cfg, def, cmd, qemuCaps, nodeset) < 0)
goto error;
if (qemuBuildMemoryDeviceCommandLine(cmd, cfg, def, qemuCaps, nodeset) < 0)
goto error;
virUUIDFormat(def->uuid, uuid);
virCommandAddArgList(cmd, "-uuid", uuid, NULL);
if (qemuBuildSmbiosCommandLine(cmd, driver, def, qemuCaps) < 0)
goto error;
/*
* NB, -nographic *MUST* come before any serial, or monitor
* or parallel port flags due to QEMU craziness, where it
* decides to change the serial port & monitor to be on stdout
* if you ask for nographic. So we have to make sure we override
* these defaults ourselves...
*/
if (!def->ngraphics) {
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DISPLAY)) {
virCommandAddArg(cmd, "-display");
virCommandAddArg(cmd, "none");
} else {
virCommandAddArg(cmd, "-nographic");
}
if (cfg->nogfxAllowHostAudio)
virCommandAddEnvPassBlockSUID(cmd, "QEMU_AUDIO_DRV", NULL);
else
virCommandAddEnvString(cmd, "QEMU_AUDIO_DRV=none");
}
/* Disable global config files and default devices */
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NO_USER_CONFIG))
virCommandAddArg(cmd, "-no-user-config");
else if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NODEFCONFIG))
virCommandAddArg(cmd, "-nodefconfig");
virCommandAddArg(cmd, "-nodefaults");
if (qemuBuildSgaCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildMonitorCommandLine(logManager, cmd, cfg, def,
qemuCaps, monitor_chr,
monitor_json) < 0)
goto error;
if (qemuBuildClockCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildPMCommandLine(cmd, def, qemuCaps, monitor_json) < 0)
goto error;
if (qemuBuildBootCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildIOMMUCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildGlobalControllerCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildControllerDevCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildHubCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildDiskDriveCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildFSDevCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildNetCommandLine(cmd, driver, def, qemuCaps, vmop, standalone,
nnicindexes, nicindexes, &bootHostdevNet) < 0)
goto error;
if (qemuBuildSmartcardCommandLine(logManager, cmd, cfg, def, qemuCaps) < 0)
goto error;
if (qemuBuildSerialCommandLine(logManager, cmd, cfg, def, qemuCaps) < 0)
goto error;
if (qemuBuildParallelsCommandLine(logManager, cmd, cfg, def, qemuCaps) < 0)
goto error;
if (qemuBuildChannelsCommandLine(logManager, cmd, cfg, def, qemuCaps) < 0)
goto error;
if (qemuBuildConsoleCommandLine(logManager, cmd, cfg, def, qemuCaps) < 0)
goto error;
if (qemuBuildTPMCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildInputCommandLine(cmd, def, qemuCaps) < 0)
goto error;
for (i = 0; i < def->ngraphics; ++i) {
if (qemuBuildGraphicsCommandLine(cfg, cmd, def, qemuCaps,
def->graphics[i]) < 0)
goto error;
}
if (qemuBuildVideoCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildSoundCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildWatchdogCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildRedirdevCommandLine(logManager, cmd, cfg, def, qemuCaps) < 0)
goto error;
if (qemuBuildHostdevCommandLine(cmd, def, qemuCaps, &bootHostdevNet) < 0)
goto error;
if (migrateURI)
virCommandAddArgList(cmd, "-incoming", migrateURI, NULL);
if (qemuBuildMemballoonCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (qemuBuildRNGCommandLine(logManager, cmd, cfg, def, qemuCaps) < 0)
goto error;
if (qemuBuildNVRAMCommandLine(cmd, def, qemuCaps) < 0)
goto error;
if (snapshot)
virCommandAddArgList(cmd, "-loadvm", snapshot->def->name, NULL);
if (def->namespaceData) {
qemuDomainCmdlineDefPtr qemucmd;
qemucmd = def->namespaceData;
for (i = 0; i < qemucmd->num_args; i++)
virCommandAddArg(cmd, qemucmd->args[i]);
for (i = 0; i < qemucmd->num_env; i++)
virCommandAddEnvPair(cmd, qemucmd->env_name[i],
qemucmd->env_value[i]
? qemucmd->env_value[i] : "");
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_SECCOMP_SANDBOX)) {
if (cfg->seccompSandbox == 0)
virCommandAddArgList(cmd, "-sandbox", "off", NULL);
else if (cfg->seccompSandbox > 0)
virCommandAddArgList(cmd, "-sandbox", "on", NULL);
} else if (cfg->seccompSandbox > 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("QEMU does not support seccomp sandboxes"));
goto error;
}
if (qemuBuildPanicCommandLine(cmd, def, qemuCaps) < 0)
goto error;
for (i = 0; i < def->nshmems; i++) {
if (qemuBuildShmemCommandLine(logManager, cmd, cfg,
def, def->shmems[i], qemuCaps))
goto error;
}
/* In some situations, eg. VFIO passthrough, QEMU might need to lock a
* significant amount of memory, so we need to set the limit accordingly */
if (qemuDomainRequiresMemLock(def))
virCommandSetMaxMemLock(cmd, qemuDomainGetMemLockLimitBytes(def));
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_MSG_TIMESTAMP) &&
cfg->logTimestamp)
virCommandAddArgList(cmd, "-msg", "timestamp=on", NULL);
virObjectUnref(cfg);
return cmd;
error:
virObjectUnref(cfg);
virCommandFree(cmd);
return NULL;
}
/* This function generates the correct '-device' string for character
* devices of each architecture.
*/
static int
qemuBuildSerialChrDeviceStr(char **deviceStr,
const virDomainDef *def,
virDomainChrDefPtr serial,
virQEMUCapsPtr qemuCaps)
{
virBuffer cmd = VIR_BUFFER_INITIALIZER;
if (qemuDomainMachineIsPSeries(def)) {
if (serial->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL &&
serial->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_SPAPRVIO) {
virBufferAsprintf(&cmd, "spapr-vty,chardev=char%s",
serial->info.alias);
if (qemuBuildDeviceAddressStr(&cmd, def, &serial->info, qemuCaps) < 0)
goto error;
}
} else {
virBufferAsprintf(&cmd, "%s,chardev=char%s,id=%s",
virDomainChrSerialTargetTypeToString(serial->targetType),
serial->info.alias, serial->info.alias);
switch (serial->targetType) {
case VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_USB:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_USB_SERIAL)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("usb-serial is not supported in this QEMU binary"));
goto error;
}
if (serial->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE &&
serial->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("usb-serial requires address of usb type"));
goto error;
}
if (qemuBuildDeviceAddressStr(&cmd, def, &serial->info, qemuCaps) < 0)
goto error;
break;
case VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_ISA:
if (serial->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE &&
serial->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_ISA) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("isa-serial requires address of isa type"));
goto error;
}
if (qemuBuildDeviceAddressStr(&cmd, def, &serial->info, qemuCaps) < 0)
goto error;
break;
case VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_PCI:
if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_PCI_SERIAL)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("pci-serial is not supported with this QEMU binary"));
goto error;
}
if (serial->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE &&
serial->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("pci-serial requires address of pci type"));
goto error;
}
if (qemuBuildDeviceAddressStr(&cmd, def, &serial->info, qemuCaps) < 0)
goto error;
break;
}
}
if (virBufferCheckError(&cmd) < 0)
goto error;
*deviceStr = virBufferContentAndReset(&cmd);
return 0;
error:
virBufferFreeAndReset(&cmd);
return -1;
}
static int
qemuBuildParallelChrDeviceStr(char **deviceStr,
virDomainChrDefPtr chr)
{
if (virAsprintf(deviceStr, "isa-parallel,chardev=char%s,id=%s",
chr->info.alias, chr->info.alias) < 0)
return -1;
return 0;
}
static int
qemuBuildChannelChrDeviceStr(char **deviceStr,
const virDomainDef *def,
virDomainChrDefPtr chr,
virQEMUCapsPtr qemuCaps)
{
int ret = -1;
char *addr = NULL;
int port;
switch ((virDomainChrChannelTargetType) chr->targetType) {
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_GUESTFWD:
addr = virSocketAddrFormat(chr->target.addr);
if (!addr)
return ret;
port = virSocketAddrGetPort(chr->target.addr);
if (virAsprintf(deviceStr,
"user,guestfwd=tcp:%s:%i-chardev:char%s,id=user-%s",
addr, port, chr->info.alias, chr->info.alias) < 0)
goto cleanup;
break;
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO:
if (!(*deviceStr = qemuBuildVirtioSerialPortDevStr(def, chr, qemuCaps)))
goto cleanup;
break;
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_NONE:
case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_LAST:
return ret;
}
ret = 0;
cleanup:
VIR_FREE(addr);
return ret;
}
static int
qemuBuildConsoleChrDeviceStr(char **deviceStr,
const virDomainDef *def,
virDomainChrDefPtr chr,
virQEMUCapsPtr qemuCaps)
{
int ret = -1;
switch ((virDomainChrConsoleTargetType) chr->targetType) {
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLP:
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLPLM:
if (!(*deviceStr = qemuBuildSclpDevStr(chr)))
goto cleanup;
break;
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_VIRTIO:
if (!(*deviceStr = qemuBuildVirtioSerialPortDevStr(def, chr, qemuCaps)))
goto cleanup;
break;
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL:
break;
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_NONE:
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_XEN:
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_UML:
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_LXC:
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_OPENVZ:
case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_LAST:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported console target type %s"),
NULLSTR(virDomainChrConsoleTargetTypeToString(chr->targetType)));
goto cleanup;
}
ret = 0;
cleanup:
return ret;
}
int
qemuBuildChrDeviceStr(char **deviceStr,
const virDomainDef *vmdef,
virDomainChrDefPtr chr,
virQEMUCapsPtr qemuCaps)
{
int ret = -1;
switch ((virDomainChrDeviceType) chr->deviceType) {
case VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL:
ret = qemuBuildSerialChrDeviceStr(deviceStr, vmdef, chr, qemuCaps);
break;
case VIR_DOMAIN_CHR_DEVICE_TYPE_PARALLEL:
ret = qemuBuildParallelChrDeviceStr(deviceStr, chr);
break;
case VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL:
ret = qemuBuildChannelChrDeviceStr(deviceStr, vmdef, chr, qemuCaps);
break;
case VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE:
ret = qemuBuildConsoleChrDeviceStr(deviceStr, vmdef, chr, qemuCaps);
break;
case VIR_DOMAIN_CHR_DEVICE_TYPE_LAST:
return ret;
}
return ret;
}
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